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131377044 = 22319075741
BaseRepresentation
bin1111101010010…
…10011110010100
3100011012122102110
413311022132110
5232113031134
621011511020
73153454311
oct765123624
9304178373
10131377044
1168182577
1237bb8470
13212ab4c6
141363bd08
15b8017e9
hex7d4a794

131377044 has 24 divisors (see below), whose sum is σ = 306760608. Its totient is φ = 43761760.

The previous prime is 131377033. The next prime is 131377067. The reversal of 131377044 is 440773131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20014 + ... + 25754.

It is an arithmetic number, because the mean of its divisors is an integer number (12781692).

Almost surely, 2131377044 is an apocalyptic number.

It is an amenable number.

131377044 is an abundant number, since it is smaller than the sum of its proper divisors (175383564).

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

131377044 is a wasteful number, since it uses less digits than its factorization.

131377044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 131377044 is about 11461.9825510249. The cubic root of 131377044 is about 508.3620963987.

The spelling of 131377044 in words is "one hundred thirty-one million, three hundred seventy-seven thousand, forty-four".

Divisors: 1 2 3 4 6 12 1907 3814 5721 5741 7628 11442 11482 17223 22884 22964 34446 68892 10948087 21896174 32844261 43792348 65688522 131377044