Search a number
-
+
131464312756 = 22717299523639
BaseRepresentation
bin111101001101111100…
…0100011011110110100
3110120022222022001002121
41322123320203132310
54123214331002011
6140221024245324
712332544135520
oct1723370433664
9416288261077
10131464312756
11508321a4a67
122158b170844
13c52138029a
146511b5cd80
1536466ade71
hex1e9be237b4

131464312756 has 48 divisors (see below), whose sum is σ = 287994873600. Its totient is φ = 51199077888.

The previous prime is 131464312751. The next prime is 131464312799. The reversal of 131464312756 is 657213464131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131464312751) 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, 4748016 + ... + 4775623.

It is an arithmetic number, because the mean of its divisors is an integer number (5999893200).

Almost surely, 2131464312756 is an apocalyptic number.

It is an amenable number.

131464312756 is an abundant number, since it is smaller than the sum of its proper divisors (156530560844).

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

131464312756 is a wasteful number, since it uses less digits than its factorization.

131464312756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523696 (or 9523694 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

Adding to 131464312756 its reverse (657213464131), we get a palindrome (788677776887).

The spelling of 131464312756 in words is "one hundred thirty-one billion, four hundred sixty-four million, three hundred twelve thousand, seven hundred fifty-six".

Divisors: 1 2 4 7 14 17 28 29 34 58 68 116 119 203 238 406 476 493 812 986 1972 3451 6902 13804 9523639 19047278 38094556 66665473 133330946 161901863 266661892 276185531 323803726 552371062 647607452 1104742124 1133313041 1933298717 2266626082 3866597434 4533252164 4695154027 7733194868 9390308054 18780616108 32866078189 65732156378 131464312756