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131113832 = 23194718353
BaseRepresentation
bin1111101000010…
…10001101101000
3100010201021100212
413310022031220
5232031120312
621002120252
73151310033
oct764121550
9303637325
10131113832
1168012843
1237ab0088
1321218765
14135b001a
15b79d822
hex7d0a368

131113832 has 32 divisors (see below), whose sum is σ = 264297600. Its totient is φ = 60781824.

The previous prime is 131113831. The next prime is 131113847. The reversal of 131113832 is 238311131.

It is a junction number, because it is equal to n+sod(n) for n = 131113798 and 131113807.

It is not an unprimeable number, because it can be changed into a prime (131113831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2033 + ... + 16320.

It is an arithmetic number, because the mean of its divisors is an integer number (8259300).

Almost surely, 2131113832 is an apocalyptic number.

It is an amenable number.

131113832 is an abundant number, since it is smaller than the sum of its proper divisors (133183768).

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

131113832 is a wasteful number, since it uses less digits than its factorization.

131113832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18425 (or 18421 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 131113832 is about 11450.4948364689. The cubic root of 131113832 is about 508.0223707263.

Adding to 131113832 its reverse (238311131), we get a palindrome (369424963).

The spelling of 131113832 in words is "one hundred thirty-one million, one hundred thirteen thousand, eight hundred thirty-two".

Divisors: 1 2 4 8 19 38 47 76 94 152 188 376 893 1786 3572 7144 18353 36706 73412 146824 348707 697414 862591 1394828 1725182 2789656 3450364 6900728 16389229 32778458 65556916 131113832