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102572345 = 51311491051
BaseRepresentation
bin1100001110100…
…10000100111001
321011000012210202
412013102010321
5202224303340
614102251545
72353564511
oct607220471
9234005722
10102572345
1152999137
122a426bb5
13183345c5
14d8a0841
159011c15
hex61d2139

102572345 has 16 divisors (see below), whose sum is σ = 124977600. Its totient is φ = 80808000.

The previous prime is 102572321. The next prime is 102572363. The reversal of 102572345 is 543275201.

It is a happy number.

It is not a de Polignac number, because 102572345 - 210 = 102571321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97070 + ... + 98120.

It is an arithmetic number, because the mean of its divisors is an integer number (7811100).

Almost surely, 2102572345 is an apocalyptic number.

It is an amenable number.

102572345 is a deficient number, since it is larger than the sum of its proper divisors (22405255).

102572345 is a wasteful number, since it uses less digits than its factorization.

102572345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 102572345 is about 10127.8006003278. The cubic root of 102572345 is about 468.1051596669.

The spelling of 102572345 in words is "one hundred two million, five hundred seventy-two thousand, three hundred forty-five".

Divisors: 1 5 131 149 655 745 1051 5255 19519 97595 137681 156599 688405 782995 20514469 102572345