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7868005250 = 25376476949
BaseRepresentation
bin1110101001111100…
…00011101110000010
3202022100001002010212
413110332003232002
5112103202132000
63340422354122
7365655640550
oct72476035602
922270032125
107868005250
113378313886
121636b8b942
139850a9711
14548d48bd0
15310b25c35
hex1d4f83b82

7868005250 has 64 divisors (see below), whose sum is σ = 16861478400. Its totient is φ = 2693044800.

The previous prime is 7868005207. The next prime is 7868005307. The reversal of 7868005250 is 525008687.

It is a super-2 number, since 2×78680052502 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7868005198 and 7868005207.

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, 1128776 + ... + 1135724.

It is an arithmetic number, because the mean of its divisors is an integer number (263460600).

Almost surely, 27868005250 is an apocalyptic number.

7868005250 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7868005250 is an abundant number, since it is smaller than the sum of its proper divisors (8993473150).

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

7868005250 is a wasteful number, since it uses less digits than its factorization.

7868005250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620 (or 7610 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 7868005250 is about 88701.7770396963. Note that the first 3 decimals coincide. The cubic root of 7868005250 is about 1988.9393816210.

The spelling of 7868005250 in words is "seven billion, eight hundred sixty-eight million, five thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 70 125 175 250 350 647 875 1294 1750 3235 4529 6470 6949 9058 13898 16175 22645 32350 34745 45290 48643 69490 80875 97286 113225 161750 173725 226450 243215 347450 486430 566125 868625 1132250 1216075 1737250 2432150 4496003 6080375 8992006 12160750 22480015 31472021 44960030 62944042 112400075 157360105 224800150 314720210 562000375 786800525 1124000750 1573601050 3934002625 7868005250