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102427808 = 257457267
BaseRepresentation
bin1100001101011…
…10110010100000
321010201212112112
412012232302200
5202210142213
614055214452
72352423230
oct606566240
9233655475
10102427808
11528aa58a
122a377428
13182b3892
14d863cc0
158ed3ea8
hex61aeca0

102427808 has 24 divisors (see below), whose sum is σ = 230463072. Its totient is φ = 43897536.

The previous prime is 102427789. The next prime is 102427811. The reversal of 102427808 is 808724201.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228410 + ... + 228857.

It is an arithmetic number, because the mean of its divisors is an integer number (9602628).

Almost surely, 2102427808 is an apocalyptic number.

It is an amenable number.

102427808 is an abundant number, since it is smaller than the sum of its proper divisors (128035264).

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

102427808 is an equidigital number, since it uses as much as digits as its factorization.

102427808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457284 (or 457276 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 102427808 is about 10120.6624289124. The cubic root of 102427808 is about 467.8851838047.

The spelling of 102427808 in words is "one hundred two million, four hundred twenty-seven thousand, eight hundred eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 457267 914534 1829068 3200869 3658136 6401738 7316272 12803476 14632544 25606952 51213904 102427808