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157157204 = 22372294637
BaseRepresentation
bin10010101111000…
…00011101010100
3101221201102011012
421113200131110
5310213012304
623332231352
73615546161
oct1127403524
9357642135
10157157204
1180790596
124476b558
1326736839
1416c2d068
15dbe516e
hex95e0754

157157204 has 24 divisors (see below), whose sum is σ = 283752840. Its totient is φ = 76104576.

The previous prime is 157157201. The next prime is 157157207. The reversal of 157157204 is 402751751.

It is an interprime number because it is at equal distance from previous prime (157157201) and next prime (157157207).

It can be written as a sum of positive squares in 4 ways, for example, as 73068304 + 84088900 = 8548^2 + 9170^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157157201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31574 + ... + 36210.

It is an arithmetic number, because the mean of its divisors is an integer number (11823035).

Almost surely, 2157157204 is an apocalyptic number.

It is an amenable number.

157157204 is a deficient number, since it is larger than the sum of its proper divisors (126595636).

157157204 is a wasteful number, since it uses less digits than its factorization.

157157204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907 (or 4905 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 157157204 is about 12536.2356391382. The cubic root of 157157204 is about 539.6490678266.

It can be divided in two parts, 157157 and 204, that multiplied together give a triangular number (32060028 = T8007).

The spelling of 157157204 in words is "one hundred fifty-seven million, one hundred fifty-seven thousand, two hundred four".

Divisors: 1 2 4 37 74 148 229 458 916 4637 8473 9274 16946 18548 33892 171569 343138 686276 1061873 2123746 4247492 39289301 78578602 157157204