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152979972 = 22316077933
BaseRepresentation
bin10010001111001…
…00101000000100
3101122212012001220
421013210220010
5303130324342
623102520340
73535210515
oct1107445004
9348765056
10152979972
1179398132
12432960b0
13259033c2
1416462a0c
15d66c5ec
hex91e4a04

152979972 has 24 divisors (see below), whose sum is σ = 357220416. Its totient is φ = 50955168.

The previous prime is 152979949. The next prime is 152979973. The reversal of 152979972 is 279979251.

It is not an unprimeable number, because it can be changed into a prime (152979973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15318 + ... + 23250.

It is an arithmetic number, because the mean of its divisors is an integer number (14884184).

Almost surely, 2152979972 is an apocalyptic number.

152979972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

152979972 is an abundant number, since it is smaller than the sum of its proper divisors (204240444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152979972 is a wasteful number, since it uses less digits than its factorization.

152979972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547 (or 9545 counting only the distinct ones).

The product of its digits is 714420, while the sum is 51.

The square root of 152979972 is about 12368.5072664408. The cubic root of 152979972 is about 534.8247855495.

The spelling of 152979972 in words is "one hundred fifty-two million, nine hundred seventy-nine thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 1607 3214 4821 6428 7933 9642 15866 19284 23799 31732 47598 95196 12748331 25496662 38244993 50993324 76489986 152979972