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131050542 = 2378935059
BaseRepresentation
bin1111100111110…
…10110000101110
3100010121001112210
413303322300232
5232022104132
621000511250
73150624360
oct763726056
9303531483
10131050542
1167a7a237
1237a7b526
13211c59cc
1413594d30
15b789bcc
hex7cfac2e

131050542 has 32 divisors (see below), whose sum is σ = 302918400. Its totient is φ = 37021248.

The previous prime is 131050529. The next prime is 131050567. The reversal of 131050542 is 245050131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13792 + ... + 21267.

It is an arithmetic number, because the mean of its divisors is an integer number (9466200).

Almost surely, 2131050542 is an apocalyptic number.

131050542 is an abundant number, since it is smaller than the sum of its proper divisors (171867858).

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

131050542 is a wasteful number, since it uses less digits than its factorization.

131050542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35160.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 131050542 is about 11447.7308668574. The cubic root of 131050542 is about 507.9406150228.

The spelling of 131050542 in words is "one hundred thirty-one million, fifty thousand, five hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 89 178 267 534 623 1246 1869 3738 35059 70118 105177 210354 245413 490826 736239 1472478 3120251 6240502 9360753 18721506 21841757 43683514 65525271 131050542