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157007908 = 2239251977
BaseRepresentation
bin10010101101111…
…00000000100100
3101221102211100201
421112330000210
5310143223113
623325120244
73614355001
oct1126740044
9357384321
10157007908
1180699402
12446b9084
13266b38b5
1416bd08a8
15dbb5cdd
hex95bc024

157007908 has 6 divisors (see below), whose sum is σ = 274763846. Its totient is φ = 78503952.

The previous prime is 157007899. The next prime is 157007927. The reversal of 157007908 is 809700751.

It can be written as a sum of positive squares in only one way, i.e., 146458404 + 10549504 = 12102^2 + 3248^2 .

It is an unprimeable number.

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, 19625985 + ... + 19625992.

Almost surely, 2157007908 is an apocalyptic number.

It is an amenable number.

157007908 is a deficient number, since it is larger than the sum of its proper divisors (117755938).

157007908 is a wasteful number, since it uses less digits than its factorization.

157007908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39251981 (or 39251979 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 157007908 is about 12530.2796457222. The cubic root of 157007908 is about 539.4781286415.

The spelling of 157007908 in words is "one hundred fifty-seven million, seven thousand, nine hundred eight".

Divisors: 1 2 4 39251977 78503954 157007908