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497159157 = 31126357283
BaseRepresentation
bin11101101000100…
…000101111110101
31021122111022011010
4131220200233311
52004233043112
6121155502433
715214532415
oct3550405765
91248438133
10497159157
112356a7040
1211a5b7a19
137bccc021
144a056645
152d9a663c
hex1da20bf5

497159157 has 16 divisors (see below), whose sum is σ = 725902848. Its totient is φ = 300157680.

The previous prime is 497159123. The next prime is 497159161. The reversal of 497159157 is 751951794.

It is not a de Polignac number, because 497159157 - 27 = 497159029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497159107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19963 + ... + 37320.

It is an arithmetic number, because the mean of its divisors is an integer number (45368928).

Almost surely, 2497159157 is an apocalyptic number.

It is an amenable number.

497159157 is a deficient number, since it is larger than the sum of its proper divisors (228743691).

497159157 is a wasteful number, since it uses less digits than its factorization.

497159157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57560.

The product of its digits is 396900, while the sum is 48.

The square root of 497159157 is about 22297.0661074501. The cubic root of 497159157 is about 792.1944843651.

The spelling of 497159157 in words is "four hundred ninety-seven million, one hundred fifty-nine thousand, one hundred fifty-seven".

Divisors: 1 3 11 33 263 789 2893 8679 57283 171849 630113 1890339 15065429 45196287 165719719 497159157