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57013161448 = 2319009374909
BaseRepresentation
bin110101000110001111…
…111100110111101000
312110011100022200112011
4311012033330313220
51413230332131243
642105205525304
74055560606405
oct650617746750
9173140280464
1057013161448
11221a7497051
12b071713834
1354b7a034b9
142a8bd152ac
15173a40d89d
hexd463fcde8

57013161448 has 16 divisors (see below), whose sum is σ = 106905586500. Its totient is φ = 28505005056.

The previous prime is 57013161421. The next prime is 57013161449. The reversal of 57013161448 is 84416131075.

It can be written as a sum of positive squares in 2 ways, for example, as 44184880804 + 12828280644 = 210202^2 + 113262^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57013161448.

It is not an unprimeable number, because it can be changed into a prime (57013161449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35383 + ... + 339526.

Almost surely, 257013161448 is an apocalyptic number.

It is an amenable number.

57013161448 is a deficient number, since it is larger than the sum of its proper divisors (49892425052).

57013161448 is a wasteful number, since it uses less digits than its factorization.

57013161448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393924 (or 393920 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 57013161448 in words is "fifty-seven billion, thirteen million, one hundred sixty-one thousand, four hundred forty-eight".

Divisors: 1 2 4 8 19009 38018 76036 152072 374909 749818 1499636 2999272 7126645181 14253290362 28506580724 57013161448