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57711894289 = 72343192
BaseRepresentation
bin110101101111111001…
…011001111100010001
312111222001002222210021
4311233321121330101
51421143221104124
642302410103441
74112104002400
oct655771317421
9174861088707
1057711894289
1122525950405
12b22771ab81
1355996bab9a
142b16a3d637
15177b9307e4
hexd6fe59f11

57711894289 has 9 divisors (see below), whose sum is σ = 67136200617. Its totient is φ = 49465896564.

The previous prime is 57711894283. The next prime is 57711894301. The reversal of 57711894289 is 98249811775.

The square root of 57711894289 is 240233.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 57711894289 - 211 = 57711892241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57711894283) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1664472 + ... + 1698790.

Almost surely, 257711894289 is an apocalyptic number.

57711894289 is the 240233-rd square number.

57711894289 is the 120117-th centered octagonal number.

It is an amenable number.

57711894289 is a deficient number, since it is larger than the sum of its proper divisors (9424306328).

57711894289 is an frugal number, since it uses more digits than its factorization.

57711894289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68652 (or 34326 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 61.

The spelling of 57711894289 in words is "fifty-seven billion, seven hundred eleven million, eight hundred ninety-four thousand, two hundred eighty-nine".

Divisors: 1 7 49 34319 240233 1681631 1177793761 8244556327 57711894289