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131302092 = 22310941841
BaseRepresentation
bin1111101001110…
…00001011001100
3100011001211121110
413310320023030
5232103131332
621010132020
73153022635
oct764701314
9304054543
10131302092
1168131229
1237b81010
132128335c
141361c88c
15b7d94cc
hex7d382cc

131302092 has 12 divisors (see below), whose sum is σ = 306371576. Its totient is φ = 43767360.

The previous prime is 131302079. The next prime is 131302097. The reversal of 131302092 is 290203131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (131302097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5470909 + ... + 5470932.

Almost surely, 2131302092 is an apocalyptic number.

131302092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131302092 is an abundant number, since it is smaller than the sum of its proper divisors (175069484).

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

131302092 is a wasteful number, since it uses less digits than its factorization.

131302092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10941848 (or 10941846 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 131302092 is about 11458.7124931207. The cubic root of 131302092 is about 508.2654026816.

The spelling of 131302092 in words is "one hundred thirty-one million, three hundred two thousand, ninety-two".

Divisors: 1 2 3 4 6 12 10941841 21883682 32825523 43767364 65651046 131302092