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70087708140 = 22355035993877
BaseRepresentation
bin100000101000110001…
…1011000110111101100
320200220112101110211020
41001101203120313230
52122014423130030
652110422454140
75030560455342
oct1012143306754
9220815343736
1070087708140
11277a675853a
1211700294350
1367bc676368
14356c527992
151c53188510
hex10518d8dec

70087708140 has 96 divisors (see below), whose sum is σ = 197014809600. Its totient is φ = 18616955136.

The previous prime is 70087708091. The next prime is 70087708183. The reversal of 70087708140 is 4180778007.

It is a junction number, because it is equal to n+sod(n) for n = 70087708092 and 70087708101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18075882 + ... + 18079758.

It is an arithmetic number, because the mean of its divisors is an integer number (2052237600).

Almost surely, 270087708140 is an apocalyptic number.

It is an amenable number.

70087708140 is an abundant number, since it is smaller than the sum of its proper divisors (126927101460).

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

70087708140 is a wasteful number, since it uses less digits than its factorization.

70087708140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4991 (or 4989 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 42.

The spelling of 70087708140 in words is "seventy billion, eighty-seven million, seven hundred eight thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 503 599 1006 1198 1509 1797 2012 2396 2515 2995 3018 3594 3877 5030 5990 6036 7188 7545 7754 8985 10060 11631 11980 15090 15508 17970 19385 23262 30180 35940 38770 46524 58155 77540 116310 232620 301297 602594 903891 1205188 1506485 1807782 1950131 2322323 3012970 3615564 3900262 4519455 4644646 5850393 6025940 6966969 7800524 9038910 9289292 9750655 11611615 11700786 13933938 18077820 19501310 23223230 23401572 27867876 29251965 34834845 39002620 46446460 58503930 69669690 117007860 139339380 1168128469 2336256938 3504385407 4672513876 5840642345 7008770814 11681284690 14017541628 17521927035 23362569380 35043854070 70087708140