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57302072709 = 3710326491943
BaseRepresentation
bin110101010111011110…
…000011110110000101
312110220110221220021020
4311113132003312011
51414323312311314
642154010141353
74065666403320
oct652736036605
9173813856236
1057302072709
1122335587392
12b132421859
13553281accb
142ab843d7b7
15175597bda9
hexd57783d85

57302072709 has 16 divisors (see below), whose sum is σ = 88165189632. Its totient is φ = 32426137008.

The previous prime is 57302072677. The next prime is 57302072713. The reversal of 57302072709 is 90727020375.

It is not a de Polignac number, because 57302072709 - 25 = 57302072677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57302072719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13243809 + ... + 13248134.

It is an arithmetic number, because the mean of its divisors is an integer number (5510324352).

Almost surely, 257302072709 is an apocalyptic number.

It is an amenable number.

57302072709 is a deficient number, since it is larger than the sum of its proper divisors (30863116923).

57302072709 is a wasteful number, since it uses less digits than its factorization.

57302072709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26492056.

The product of its (nonzero) digits is 185220, while the sum is 42.

The spelling of 57302072709 in words is "fifty-seven billion, three hundred two million, seventy-two thousand, seven hundred nine".

Divisors: 1 3 7 21 103 309 721 2163 26491943 79475829 185443601 556330803 2728670129 8186010387 19100690903 57302072709