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131332968 = 23331346771
BaseRepresentation
bin1111101001111…
…11101101101000
3100011010101222000
413310333231220
5232110123333
621010531000
73153211644
oct764775550
9304111860
10131332968
1168152448
1237b96a60
1321294420
1413629c24
15b7e3713
hex7d3fb68

131332968 has 64 divisors (see below), whose sum is σ = 392884800. Its totient is φ = 40409280.

The previous prime is 131332961. The next prime is 131332969. The reversal of 131332968 is 869233131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (131332961) 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, 20578 + ... + 26193.

It is an arithmetic number, because the mean of its divisors is an integer number (6138825).

Almost surely, 2131332968 is an apocalyptic number.

131332968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131332968 is an abundant number, since it is smaller than the sum of its proper divisors (261551832).

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

131332968 is a wasteful number, since it uses less digits than its factorization.

131332968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46799 (or 46789 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 131332968 is about 11460.0596857084. The cubic root of 131332968 is about 508.3052394997.

The spelling of 131332968 in words is "one hundred thirty-one million, three hundred thirty-two thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 702 936 1404 2808 46771 93542 140313 187084 280626 374168 420939 561252 608023 841878 1122504 1216046 1262817 1683756 1824069 2432092 2525634 3367512 3648138 4864184 5051268 5472207 7296276 10102536 10944414 14592552 16416621 21888828 32833242 43777656 65666484 131332968