Search a number
-
+
105007187712 = 283776125667
BaseRepresentation
bin110000111001011101…
…0101000011100000000
3101001001010112211111110
41201302322220130000
53210023320001322
6120123432243320
710405114240260
oct1416272503400
9331033484443
10105007187712
1140595902369
1218426840540
139b95cb6acb
1451220737a0
152ae8b10c0c
hex1872ea8700

105007187712 has 144 divisors (see below), whose sum is σ = 319829029632. Its totient is φ = 29961461760.

The previous prime is 105007187699. The next prime is 105007187731. The reversal of 105007187712 is 217781700501.

It is a super-2 number, since 2×1050071877122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4078303 + ... + 4103969.

It is an arithmetic number, because the mean of its divisors is an integer number (2221034928).

Almost surely, 2105007187712 is an apocalyptic number.

105007187712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105007187712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159914514816).

105007187712 is an abundant number, since it is smaller than the sum of its proper divisors (214821841920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105007187712 is an equidigital number, since it uses as much as digits as its factorization.

105007187712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26454 (or 26440 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 39.

The spelling of 105007187712 in words is "one hundred five billion, seven million, one hundred eighty-seven thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 672 761 768 896 1344 1522 1792 2283 2688 3044 4566 5327 5376 6088 9132 10654 12176 15981 18264 21308 24352 25667 31962 36528 42616 48704 51334 63924 73056 77001 85232 97408 102668 127848 146112 154002 170464 179669 194816 205336 255696 292224 308004 340928 359338 410672 511392 539007 584448 616008 681856 718676 821344 1022784 1078014 1232016 1363712 1437352 1642688 2045568 2156028 2464032 2874704 3285376 4091136 4312056 4928064 5749408 6570752 8624112 9856128 11498816 17248224 19532587 19712256 22997632 34496448 39065174 45995264 58597761 68992896 78130348 117195522 136728109 137985792 156260696 234391044 273456218 312521392 410184327 468782088 546912436 625042784 820368654 937564176 1093824872 1250085568 1640737308 1875128352 2187649744 2500171136 3281474616 3750256704 4375299488 5000342272 6562949232 7500513408 8750598976 13125898464 15001026816 17501197952 26251796928 35002395904 52503593856 105007187712