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57766680 = 23325179439
BaseRepresentation
bin1101110001011…
…1001100011000
311000200211222200
43130113030120
5104242013210
65422050200
71301002656
oct334271430
9130624880
1057766680
112a675a64
1217419960
13bc7758a
147959dd6
1551110c0
hex3717318

57766680 has 96 divisors (see below), whose sum is σ = 198806400. Its totient is φ = 14496768.

The previous prime is 57766679. The next prime is 57766691. The reversal of 57766680 is 8666775.

57766680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401 + ... + 10839.

It is an arithmetic number, because the mean of its divisors is an integer number (2070900).

Almost surely, 257766680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57766680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99403200).

57766680 is an abundant number, since it is smaller than the sum of its proper divisors (141039720).

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

57766680 is a wasteful number, since it uses less digits than its factorization.

57766680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473 (or 9466 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 57766680 is about 7600.4394609786. The cubic root of 57766680 is about 386.5679130817.

The spelling of 57766680 in words is "fifty-seven million, seven hundred sixty-six thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 360 408 510 612 680 765 1020 1224 1530 2040 3060 6120 9439 18878 28317 37756 47195 56634 75512 84951 94390 113268 141585 160463 169902 188780 226536 283170 320926 339804 377560 424755 481389 566340 641852 679608 802315 849510 962778 1132680 1283704 1444167 1604630 1699020 1925556 2406945 2888334 3209260 3398040 3851112 4813890 5776668 6418520 7220835 9627780 11553336 14441670 19255560 28883340 57766680