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57300072 = 2333317213
BaseRepresentation
bin1101101010010…
…1010001101000
310222211010220220
43122211101220
5104132100242
65404050040
71264020414
oct332452150
9128733826
1057300072
112a387435
1217233920
13bb4308b
147877d44
15506cbec
hex36a5468

57300072 has 32 divisors (see below), whose sum is σ = 143702880. Its totient is φ = 19039680.

The previous prime is 57300071. The next prime is 57300079. The reversal of 57300072 is 27000375.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (57300071) 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, 4338 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (4490715).

Almost surely, 257300072 is an apocalyptic number.

It is an amenable number.

57300072 is an abundant number, since it is smaller than the sum of its proper divisors (86402808).

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

57300072 is a wasteful number, since it uses less digits than its factorization.

57300072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553 (or 7549 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 57300072 is about 7569.6811029263. The cubic root of 57300072 is about 385.5242691735.

The spelling of 57300072 in words is "fifty-seven million, three hundred thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 331 662 993 1324 1986 2648 3972 7213 7944 14426 21639 28852 43278 57704 86556 173112 2387503 4775006 7162509 9550012 14325018 19100024 28650036 57300072