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152972479 = 11101157877
BaseRepresentation
bin10010001111000…
…10110010111111
3101122211210210101
421013202302333
5303130104404
623102421531
73535146622
oct1107426277
9348753711
10152972479
1179392540
12432918a7
13258ccb7a
141645ddb9
15d66a2a4
hex91e2cbf

152972479 has 16 divisors (see below), whose sum is σ = 169798176. Its totient is φ = 136656000.

The previous prime is 152972461. The next prime is 152972483. The reversal of 152972479 is 974279251.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 152972479 - 25 = 152972447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152972459) 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, 173989 + ... + 174865.

It is an arithmetic number, because the mean of its divisors is an integer number (10612386).

Almost surely, 2152972479 is an apocalyptic number.

152972479 is a deficient number, since it is larger than the sum of its proper divisors (16825697).

152972479 is a wasteful number, since it uses less digits than its factorization.

152972479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

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

The square root of 152972479 is about 12368.2043563324. The cubic root of 152972479 is about 534.8160534532.

The spelling of 152972479 in words is "one hundred fifty-two million, nine hundred seventy-two thousand, four hundred seventy-nine".

Divisors: 1 11 101 157 877 1111 1727 9647 15857 88577 137689 174427 974347 1514579 13906589 152972479