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57437693436 = 223113223189947
BaseRepresentation
bin110101011111100011…
…011010010111111100
312111020221011010221010
4311133203122113330
51420113022142221
642215253035220
74102234224114
oct653743322774
9174227133833
1057437693436
11223a5098232
12b16b925b10
135554953c66
142acc464044
15176281ac76
hexd5f8da5fc

57437693436 has 48 divisors (see below), whose sum is σ = 135814339584. Its totient is φ = 18891269376.

The previous prime is 57437693431. The next prime is 57437693447. The reversal of 57437693436 is 63439673475.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57437693431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207415 + ... + 397361.

It is an arithmetic number, because the mean of its divisors is an integer number (2829465408).

Almost surely, 257437693436 is an apocalyptic number.

It is an amenable number.

57437693436 is an abundant number, since it is smaller than the sum of its proper divisors (78376646148).

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

57437693436 is a wasteful number, since it uses less digits than its factorization.

57437693436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190290 (or 190288 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 57.

The spelling of 57437693436 in words is "fifty-seven billion, four hundred thirty-seven million, six hundred ninety-three thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 12 113 223 226 339 446 452 669 678 892 1338 1356 2676 25199 50398 75597 100796 151194 189947 302388 379894 569841 759788 1139682 2279364 21464011 42358181 42928022 64392033 84716362 85856044 127074543 128784066 169432724 254149086 257568132 508298172 4786474453 9572948906 14359423359 19145897812 28718846718 57437693436