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102256902 = 23211516449
BaseRepresentation
bin1100001100001…
…01000100000110
321010102012002200
412012011010012
5202134210102
614051415330
72351112036
oct606050406
9233365080
10102256902
11527a3140
122a2b4546
1318253b57
14d81b8c6
158e9d51c
hex6185106

102256902 has 24 divisors (see below), whose sum is σ = 241698600. Its totient is φ = 30986880.

The previous prime is 102256901. The next prime is 102256907. The reversal of 102256902 is 209652201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102256901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258027 + ... + 258422.

It is an arithmetic number, because the mean of its divisors is an integer number (10070775).

Almost surely, 2102256902 is an apocalyptic number.

102256902 is an abundant number, since it is smaller than the sum of its proper divisors (139441698).

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

102256902 is a wasteful number, since it uses less digits than its factorization.

102256902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516468 (or 516465 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 102256902 is about 10112.2154842547. The cubic root of 102256902 is about 467.6248088703.

The spelling of 102256902 in words is "one hundred two million, two hundred fifty-six thousand, nine hundred two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 516449 1032898 1549347 3098694 4648041 5680939 9296082 11361878 17042817 34085634 51128451 102256902