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152645420 = 2257632271
BaseRepresentation
bin10010001100100…
…10111100101100
3101122020012011002
421012102330230
5303034123140
623051415432
73532315244
oct1106227454
9348205132
10152645420
1179189844
1243154578
1325817045
14163b6b24
15d603415
hex9192f2c

152645420 has 12 divisors (see below), whose sum is σ = 320555424. Its totient is φ = 61058160.

The previous prime is 152645417. The next prime is 152645429. The reversal of 152645420 is 24546251.

It is not an unprimeable number, because it can be changed into a prime (152645429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816116 + ... + 3816155.

It is an arithmetic number, because the mean of its divisors is an integer number (26712952).

Almost surely, 2152645420 is an apocalyptic number.

152645420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152645420 is an abundant number, since it is smaller than the sum of its proper divisors (167910004).

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

152645420 is a wasteful number, since it uses less digits than its factorization.

152645420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632280 (or 7632278 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 152645420 is about 12354.9755159612. The cubic root of 152645420 is about 534.4346314449.

The spelling of 152645420 in words is "one hundred fifty-two million, six hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7632271 15264542 30529084 38161355 76322710 152645420