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57220981160 = 2357367556841
BaseRepresentation
bin110101010010101000…
…101110000110101000
312110200211101000120112
4311102220232012220
51414142032344120
642141552113452
74063663212650
oct652250560650
9173624330515
1057220981160
11222a3830082
12b10b235888
13551ba97b45
142aab771360
15174d7aebc5
hexd52a2e1a8

57220981160 has 64 divisors (see below), whose sum is σ = 147540856320. Its totient is φ = 19565130240.

The previous prime is 57220981157. The next prime is 57220981261. The reversal of 57220981160 is 6118902275.

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, 175661 + ... + 381180.

It is an arithmetic number, because the mean of its divisors is an integer number (2305325880).

Almost surely, 257220981160 is an apocalyptic number.

It is an amenable number.

57220981160 is an abundant number, since it is smaller than the sum of its proper divisors (90319875160).

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

57220981160 is a wasteful number, since it uses less digits than its factorization.

57220981160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557226 (or 557222 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 57220981160 in words is "fifty-seven billion, two hundred twenty million, nine hundred eighty-one thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 367 734 1468 1835 2569 2936 3670 5138 7340 10276 12845 14680 20552 25690 51380 102760 556841 1113682 2227364 2784205 3897887 4454728 5568410 7795774 11136820 15591548 19489435 22273640 31183096 38978870 77957740 155915480 204360647 408721294 817442588 1021803235 1430524529 1634885176 2043606470 2861049058 4087212940 5722098116 7152622645 8174425880 11444196232 14305245290 28610490580 57220981160