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57585746138 = 228792873069
BaseRepresentation
bin110101101000011000…
…001100000011011010
312111122020202000001112
4311220120030003122
51420413422334023
642242102220322
74106012523464
oct655030140332
9174566660045
1057585746138
112247071a438
12b1b14246a2
1355795206cb
142b03da3134
151770813478
hexd6860c0da

57585746138 has 4 divisors (see below), whose sum is σ = 86378619210. Its totient is φ = 28792873068.

The previous prime is 57585746111. The next prime is 57585746143. The reversal of 57585746138 is 83164758575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 34211311369 + 23374434769 = 184963^2 + 152887^2 .

It is a super-2 number, since 2×575857461382 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14396436533 + ... + 14396436536.

Almost surely, 257585746138 is an apocalyptic number.

57585746138 is a deficient number, since it is larger than the sum of its proper divisors (28792873072).

57585746138 is a wasteful number, since it uses less digits than its factorization.

57585746138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28792873071.

The product of its digits is 28224000, while the sum is 59.

The spelling of 57585746138 in words is "fifty-seven billion, five hundred eighty-five million, seven hundred forty-six thousand, one hundred thirty-eight".

Divisors: 1 2 28792873069 57585746138