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102512864 = 253203527
BaseRepresentation
bin1100001110000…
…11100011100000
321010220012012202
412013003203200
5202220402424
614101112332
72353226216
oct607034340
9233805182
10102512864
1152958483
122a3b86a8
13183134cc
14d886cb6
158eee2ae
hex61c38e0

102512864 has 12 divisors (see below), whose sum is σ = 201822264. Its totient is φ = 51256416.

The previous prime is 102512857. The next prime is 102512867. The reversal of 102512864 is 468215201.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102512867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601732 + ... + 1601795.

It is an arithmetic number, because the mean of its divisors is an integer number (16818522).

Almost surely, 2102512864 is an apocalyptic number.

It is an amenable number.

102512864 is a deficient number, since it is larger than the sum of its proper divisors (99309400).

102512864 is an equidigital number, since it uses as much as digits as its factorization.

102512864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203537 (or 3203529 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 102512864 is about 10124.8636534029. The cubic root of 102512864 is about 468.0146585128.

The spelling of 102512864 in words is "one hundred two million, five hundred twelve thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 3203527 6407054 12814108 25628216 51256432 102512864