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157063897 = 1027315289
BaseRepresentation
bin10010101110010…
…01101011011001
3101221112200011101
421113021223121
5310202021042
623330231401
73615010144
oct1127115331
9357480141
10157063897
1180727481
1244725561
1326703223
1416c0705b
15dbc76b7
hex95c9ad9

157063897 has 4 divisors (see below), whose sum is σ = 157089460. Its totient is φ = 157038336.

The previous prime is 157063883. The next prime is 157063943. The reversal of 157063897 is 798360751.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 65593801 + 91470096 = 8099^2 + 9564^2 .

It is a cyclic number.

It is not a de Polignac number, because 157063897 - 27 = 157063769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157063817) 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, 2629 + ... + 17917.

It is an arithmetic number, because the mean of its divisors is an integer number (39272365).

Almost surely, 2157063897 is an apocalyptic number.

It is an amenable number.

157063897 is a deficient number, since it is larger than the sum of its proper divisors (25563).

157063897 is a wasteful number, since it uses less digits than its factorization.

157063897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25562.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 157063897 is about 12532.5135946465. The cubic root of 157063897 is about 539.5422469646.

The spelling of 157063897 in words is "one hundred fifty-seven million, sixty-three thousand, eight hundred ninety-seven".

Divisors: 1 10273 15289 157063897