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57112680 = 23352320693
BaseRepresentation
bin1101100111011…
…1100001101000
310222110121212110
43121313201220
5104110101210
65400042320
71262310162
oct331674150
9128417773
1057112680
112a269669
12171633a0
13baa89b1
147829932
155032420
hex3677868

57112680 has 64 divisors (see below), whose sum is σ = 178796160. Its totient is φ = 14567168.

The previous prime is 57112669. The next prime is 57112709. The reversal of 57112680 is 8621175.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7587 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (2793690).

Almost surely, 257112680 is an apocalyptic number.

It is an amenable number.

57112680 is an abundant number, since it is smaller than the sum of its proper divisors (121683480).

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

57112680 is a wasteful number, since it uses less digits than its factorization.

57112680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20730 (or 20726 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 57112680 is about 7557.2931662071. The cubic root of 57112680 is about 385.1035421738.

The spelling of 57112680 in words is "fifty-seven million, one hundred twelve thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 92 115 120 138 184 230 276 345 460 552 690 920 1380 2760 20693 41386 62079 82772 103465 124158 165544 206930 248316 310395 413860 475939 496632 620790 827720 951878 1241580 1427817 1903756 2379695 2483160 2855634 3807512 4759390 5711268 7139085 9518780 11422536 14278170 19037560 28556340 57112680