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131384160 = 25335171789
BaseRepresentation
bin1111101010011…
…00001101100000
3100011020000012000
413311030031200
5232113243120
621012004000
73153514125
oct765141540
9304200160
10131384160
1168187956
1238000600
13212b180b
141364074c
15b803990
hex7d4c360

131384160 has 192 divisors, whose sum is σ = 487166400. Its totient is φ = 32956416.

The previous prime is 131384111. The next prime is 131384207. The reversal of 131384160 is 61483131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 72546 + ... + 74334.

It is an arithmetic number, because the mean of its divisors is an integer number (2537325).

Almost surely, 2131384160 is an apocalyptic number.

131384160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131384160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243583200).

131384160 is an abundant number, since it is smaller than the sum of its proper divisors (355782240).

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

131384160 is a wasteful number, since it uses less digits than its factorization.

131384160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 131384160 is about 11462.2929643244. The cubic root of 131384160 is about 508.3712746621.

The spelling of 131384160 in words is "one hundred thirty-one million, three hundred eighty-four thousand, one hundred sixty".