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57217774992 = 2437170290997
BaseRepresentation
bin110101010010011100…
…011111010110010000
312110200121100010112120
4311102130133112100
51414140222244432
642141355254240
74063624030350
oct652234372620
9173617303476
1057217774992
11222a1a40254
12b10a14a380
13551b2146c1
142aab178b60
15174d379c2c
hexd5271f590

57217774992 has 40 divisors (see below), whose sum is σ = 168928670016. Its totient is φ = 16347935616.

The previous prime is 57217774963. The next prime is 57217775011. The reversal of 57217774992 is 29947771275.

57217774992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85145163 + ... + 85145834.

Almost surely, 257217774992 is an apocalyptic number.

It is an amenable number.

57217774992 is an abundant number, since it is smaller than the sum of its proper divisors (111710895024).

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

57217774992 is a wasteful number, since it uses less digits than its factorization.

57217774992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170291015 (or 170291009 counting only the distinct ones).

The product of its digits is 15558480, while the sum is 60.

The spelling of 57217774992 in words is "fifty-seven billion, two hundred seventeen million, seven hundred seventy-four thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 170290997 340581994 510872991 681163988 1021745982 1192036979 1362327976 2043491964 2384073958 2724655952 3576110937 4086983928 4768147916 7152221874 8173967856 9536295832 14304443748 19072591664 28608887496 57217774992