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3130747557 = 371723381287
BaseRepresentation
bin1011101010011011…
…0110101010100101
322002012001110021020
42322212312222211
522402432410212
61234354441353
7140403625620
oct27246665245
98065043236
103130747557
111367252a83
12734593259
133ab802362
14219b1cdb7
15134cbdd8c
hexba9b6aa5

3130747557 has 32 divisors (see below), whose sum is σ = 5270925312. Its totient is φ = 1610552064.

The previous prime is 3130747549. The next prime is 3130747579. The reversal of 3130747557 is 7557470313.

It is not a de Polignac number, because 3130747557 - 23 = 3130747549 is a prime.

It is a super-2 number, since 2×31307475572 = 19603160531322936498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130747517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182433 + ... + 198854.

It is an arithmetic number, because the mean of its divisors is an integer number (164716416).

Almost surely, 23130747557 is an apocalyptic number.

It is an amenable number.

3130747557 is a deficient number, since it is larger than the sum of its proper divisors (2140177755).

3130747557 is a wasteful number, since it uses less digits than its factorization.

3130747557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381337.

The product of its (nonzero) digits is 308700, while the sum is 42.

The square root of 3130747557 is about 55953.0835343326. The cubic root of 3130747557 is about 1462.9046379522.

The spelling of 3130747557 in words is "three billion, one hundred thirty million, seven hundred forty-seven thousand, five hundred fifty-seven".

Divisors: 1 3 7 17 21 23 51 69 119 161 357 391 483 1173 2737 8211 381287 1143861 2669009 6481879 8007027 8769601 19445637 26308803 45373153 61387207 136119459 149083217 184161621 447249651 1043582519 3130747557