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57388303668 = 2234782358639
BaseRepresentation
bin110101011100100111…
…000000010100110100
312111010111012212220110
4311130213000110310
51420012401204133
642210330303020
74101064350453
oct653447002464
9174114185813
1057388303668
112237a223a43
12b157287a70
135547650547
142ac5a88b9a
15175d311c63
hexd5c9c0534

57388303668 has 12 divisors (see below), whose sum is σ = 133906041920. Its totient is φ = 19129434552.

The previous prime is 57388303649. The next prime is 57388303681. The reversal of 57388303668 is 86630388375.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2391179308 + ... + 2391179331.

Almost surely, 257388303668 is an apocalyptic number.

It is an amenable number.

57388303668 is an abundant number, since it is smaller than the sum of its proper divisors (76517738252).

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

57388303668 is a wasteful number, since it uses less digits than its factorization.

57388303668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4782358646 (or 4782358644 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 57388303668 in words is "fifty-seven billion, three hundred eighty-eight million, three hundred three thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 4782358639 9564717278 14347075917 19129434556 28694151834 57388303668