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57045460 = 2257193967
BaseRepresentation
bin1101100110011…
…1000111010100
310222100012122211
43121213013110
5104100423320
65354403204
71261610203
oct331470724
9128305584
1057045460
112a22310a
1217130504
13ba84214
14780d23a
15501c55a
hex36671d4

57045460 has 24 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 22780704.

The previous prime is 57045449. The next prime is 57045491. The reversal of 57045460 is 6454075.

It is a happy number.

It is a super-2 number, since 2×570454602 = 6508369013223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12397 + ... + 16363.

It is an arithmetic number, because the mean of its divisors is an integer number (4999680).

Almost surely, 257045460 is an apocalyptic number.

It is an amenable number.

57045460 is an abundant number, since it is smaller than the sum of its proper divisors (62946860).

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

57045460 is a wasteful number, since it uses less digits than its factorization.

57045460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695 (or 4693 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 57045460 is about 7552.8444972739. The cubic root of 57045460 is about 384.9523975553.

The spelling of 57045460 in words is "fifty-seven million, forty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 719 1438 2876 3595 3967 7190 7934 14380 15868 19835 39670 79340 2852273 5704546 11409092 14261365 28522730 57045460