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57457080 = 2333553201
BaseRepresentation
bin1101101100101…
…1100110111000
311000010010022000
43123023212320
5104202111310
65411301000
71265243232
oct333134670
9130103260
1057457080
112a48439a
12172aa760
13bb99695
1478b9252
15509e4c0
hex36cb9b8

57457080 has 64 divisors (see below), whose sum is σ = 191527200. Its totient is φ = 15321600.

The previous prime is 57457069. The next prime is 57457087. The reversal of 57457080 is 8075475.

57457080 is a `hidden beast` number, since 5 + 7 + 4 + 570 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57457087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25521 + ... + 27680.

Almost surely, 257457080 is an apocalyptic number.

It is an amenable number.

57457080 is an abundant number, since it is smaller than the sum of its proper divisors (134070120).

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

57457080 is a wasteful number, since it uses less digits than its factorization.

57457080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53221 (or 53211 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 57457080 is about 7580.0448547486. The cubic root of 57457080 is about 385.8760732224.

The spelling of 57457080 in words is "fifty-seven million, four hundred fifty-seven thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 53201 106402 159603 212804 266005 319206 425608 478809 532010 638412 798015 957618 1064020 1276824 1436427 1596030 1915236 2128040 2394045 2872854 3192060 3830472 4788090 5745708 6384120 7182135 9576180 11491416 14364270 19152360 28728540 57457080