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57137013 = 32101239263
BaseRepresentation
bin1101100111110…
…1011101110101
310222111212020200
43121331131311
5104111341023
65400351113
71262441133
oct331753565
9128455220
1057137013
112a28597a
1217175499
13bab6aab
147834753
155039743
hex367d775

57137013 has 24 divisors (see below), whose sum is σ = 84015360. Its totient is φ = 37413600.

The previous prime is 57136993. The next prime is 57137029. The reversal of 57137013 is 31073175.

It is not a de Polignac number, because 57137013 - 210 = 57135989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57137063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217120 + ... + 217382.

It is an arithmetic number, because the mean of its divisors is an integer number (3500640).

Almost surely, 257137013 is an apocalyptic number.

It is an amenable number.

57137013 is a deficient number, since it is larger than the sum of its proper divisors (26878347).

57137013 is a wasteful number, since it uses less digits than its factorization.

57137013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2205, while the sum is 27.

The square root of 57137013 is about 7558.9028965849. The cubic root of 57137013 is about 385.1582258506.

The spelling of 57137013 in words is "fifty-seven million, one hundred thirty-seven thousand, thirteen".

Divisors: 1 3 9 101 239 263 303 717 789 909 2151 2367 24139 26563 62857 72417 79689 188571 217251 239067 565713 6348557 19045671 57137013