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131302112 = 2531132361
BaseRepresentation
bin1111101001110…
…00001011100000
3100011001211122012
413310320023200
5232103131422
621010132052
73153022664
oct764701340
9304054565
10131302112
1168131247
1237b81028
1321283376
141361c8a4
15b7d94e2
hex7d382e0

131302112 has 24 divisors (see below), whose sum is σ = 266841792. Its totient is φ = 63532800.

The previous prime is 131302109. The next prime is 131302117. The reversal of 131302112 is 211203131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131302117) 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 3 ways as a sum of consecutive naturals, for example, 65189 + ... + 67172.

It is an arithmetic number, because the mean of its divisors is an integer number (11118408).

Almost surely, 2131302112 is an apocalyptic number.

It is an amenable number.

131302112 is an abundant number, since it is smaller than the sum of its proper divisors (135539680).

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

131302112 is a wasteful number, since it uses less digits than its factorization.

131302112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132402 (or 132394 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131302112 is about 11458.7133658190. The cubic root of 131302112 is about 508.2654284881.

Adding to 131302112 its reverse (211203131), we get a palindrome (342505243).

The spelling of 131302112 in words is "one hundred thirty-one million, three hundred two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 132361 264722 529444 1058888 2117776 4103191 4235552 8206382 16412764 32825528 65651056 131302112