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57853680 = 24351931249
BaseRepresentation
bin1101110010110…
…0011011110000
311000212021022220
43130230123300
5104302304210
65424001040
71301514423
oct334543360
9130767286
1057853680
112a725365
1217460180
13bca8061
14797d9ba
15512bc70
hex372c6f0

57853680 has 80 divisors (see below), whose sum is σ = 180420000. Its totient is φ = 15335424.

The previous prime is 57853633. The next prime is 57853721. The reversal of 57853680 is 8635875.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 45696 + ... + 46944.

It is an arithmetic number, because the mean of its divisors is an integer number (2255250).

Almost surely, 257853680 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 57853680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90210000).

57853680 is an abundant number, since it is smaller than the sum of its proper divisors (122566320).

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

57853680 is a wasteful number, since it uses less digits than its factorization.

57853680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1452 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 57853680 is about 7606.1606609379. The cubic root of 57853680 is about 386.7618803706.

The spelling of 57853680 in words is "fifty-seven million, eight hundred fifty-three thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 193 240 386 579 772 965 1158 1249 1544 1930 2316 2498 2895 3088 3747 3860 4632 4996 5790 6245 7494 7720 9264 9992 11580 12490 14988 15440 18735 19984 23160 24980 29976 37470 46320 49960 59952 74940 99920 149880 241057 299760 482114 723171 964228 1205285 1446342 1928456 2410570 2892684 3615855 3856912 4821140 5785368 7231710 9642280 11570736 14463420 19284560 28926840 57853680