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57089480 = 2357533847
BaseRepresentation
bin1101100111000…
…1110111001000
310222102110001012
43121301313020
5104103330410
65355343052
71262152430
oct331616710
9128373035
1057089480
112a253198
1217151a88
13ba9b276
1478212c0
15502a605
hex3671dc8

57089480 has 64 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 19199232.

The previous prime is 57089479. The next prime is 57089489. The reversal of 57089480 is 8498075.

It is not an unprimeable number, because it can be changed into a prime (57089489) 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, 12917 + ... + 16763.

It is an arithmetic number, because the mean of its divisors is an integer number (2337660).

Almost surely, 257089480 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 57089480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74805120).

57089480 is an abundant number, since it is smaller than the sum of its proper divisors (92520760).

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

57089480 is a wasteful number, since it uses less digits than its factorization.

57089480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 57089480 is about 7555.7580691814. The cubic root of 57089480 is about 385.0513902278.

The spelling of 57089480 in words is "fifty-seven million, eighty-nine thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 53 56 70 106 140 212 265 280 371 424 530 742 1060 1484 1855 2120 2968 3710 3847 7420 7694 14840 15388 19235 26929 30776 38470 53858 76940 107716 134645 153880 203891 215432 269290 407782 538580 815564 1019455 1077160 1427237 1631128 2038910 2854474 4077820 5708948 7136185 8155640 11417896 14272370 28544740 57089480