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102557159 = 409250751
BaseRepresentation
bin1100001110011…
…10010111100111
321010222102222022
412013032113213
5202223312114
614102053355
72353502315
oct607162747
9233872868
10102557159
1152988791
122a41a25b
131832a713
14d8990b5
15900c48e
hex61ce5e7

102557159 has 4 divisors (see below), whose sum is σ = 102808320. Its totient is φ = 102306000.

The previous prime is 102557153. The next prime is 102557167. The reversal of 102557159 is 951755201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102557159 - 212 = 102553063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102557153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124967 + ... + 125784.

It is an arithmetic number, because the mean of its divisors is an integer number (25702080).

Almost surely, 2102557159 is an apocalyptic number.

102557159 is a deficient number, since it is larger than the sum of its proper divisors (251161).

102557159 is an equidigital number, since it uses as much as digits as its factorization.

102557159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251160.

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 102557159 is about 10127.0508540246. The cubic root of 102557159 is about 468.0820572871.

The spelling of 102557159 in words is "one hundred two million, five hundred fifty-seven thousand, one hundred fifty-nine".

Divisors: 1 409 250751 102557159