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157428204 = 22325152267
BaseRepresentation
bin10010110001000…
…10100111101100
3101222020011220020
421120202213230
5310300200304
623342122140
73621055233
oct1130424754
9358204806
10157428204
118095615a
1244880350
13267cccab
1416c9db1a
15dc4a5d9
hex96229ec

157428204 has 24 divisors (see below), whose sum is σ = 368803008. Its totient is φ = 52266000.

The previous prime is 157428197. The next prime is 157428209. The reversal of 157428204 is 402824751.

It is not an unprimeable number, because it can be changed into a prime (157428209) 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 7 ways as a sum of consecutive naturals, for example, 23122 + ... + 29145.

It is an arithmetic number, because the mean of its divisors is an integer number (15366792).

Almost surely, 2157428204 is an apocalyptic number.

It is an amenable number.

157428204 is an abundant number, since it is smaller than the sum of its proper divisors (211374804).

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

157428204 is a wasteful number, since it uses less digits than its factorization.

157428204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52525 (or 52523 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 157428204 is about 12547.0396508499. The cubic root of 157428204 is about 539.9590778317.

The spelling of 157428204 in words is "one hundred fifty-seven million, four hundred twenty-eight thousand, two hundred four".

Divisors: 1 2 3 4 6 12 251 502 753 1004 1506 3012 52267 104534 156801 209068 313602 627204 13119017 26238034 39357051 52476068 78714102 157428204