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131507068 = 22711426971
BaseRepresentation
bin1111101011010…
…10001101111100
3100011110020210011
413311222031330
5232131211233
621014353004
73154535350
oct765521574
9304406704
10131507068
1168261230
123805b764
1321325744
1413673460
15b82a0cd
hex7d6a37c

131507068 has 24 divisors (see below), whose sum is σ = 286925184. Its totient is φ = 51236400.

The previous prime is 131507063. The next prime is 131507069. The reversal of 131507068 is 860705131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131507063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213178 + ... + 213793.

It is an arithmetic number, because the mean of its divisors is an integer number (11955216).

Almost surely, 2131507068 is an apocalyptic number.

It is an amenable number.

131507068 is an abundant number, since it is smaller than the sum of its proper divisors (155418116).

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

131507068 is a wasteful number, since it uses less digits than its factorization.

131507068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426993 (or 426991 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 131507068 is about 11467.6531164838. The cubic root of 131507068 is about 508.5297499375.

The spelling of 131507068 in words is "one hundred thirty-one million, five hundred seven thousand, sixty-eight".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 426971 853942 1707884 2988797 4696681 5977594 9393362 11955188 18786724 32876767 65753534 131507068