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57171472 = 245971853
BaseRepresentation
bin1101101000010…
…1111000010000
310222120121111221
43122011320100
5104113441342
65401214424
71262643451
oct332057020
9128517457
1057171472
112a2a9856
1217191414
13bac9697
147843128
155044a67
hex3685e10

57171472 has 40 divisors (see below), whose sum is σ = 114367680. Its totient is φ = 27672960.

The previous prime is 57171461. The next prime is 57171487. The reversal of 57171472 is 27417175.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66598 + ... + 67450.

It is an arithmetic number, because the mean of its divisors is an integer number (2859192).

Almost surely, 257171472 is an apocalyptic number.

It is an amenable number.

57171472 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

57171472 is a wasteful number, since it uses less digits than its factorization.

57171472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991 (or 985 counting only the distinct ones).

The product of its digits is 13720, while the sum is 34.

The square root of 57171472 is about 7561.1819181924. The cubic root of 57171472 is about 385.2356391850.

The spelling of 57171472 in words is "fifty-seven million, one hundred seventy-one thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 59 71 118 142 236 284 472 568 853 944 1136 1706 3412 4189 6824 8378 13648 16756 33512 50327 60563 67024 100654 121126 201308 242252 402616 484504 805232 969008 3573217 7146434 14292868 28585736 57171472