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131066424 = 233567421
BaseRepresentation
bin1111100111111…
…10101000111000
3100010121212100000
413303332220320
5232023111144
621001113000
73151021566
oct763765070
9303555300
10131066424
1167a90165
1237a88760
13211cccc8
141359aa36
15b78e769
hex7cfea38

131066424 has 48 divisors (see below), whose sum is σ = 368124120. Its totient is φ = 43688160.

The previous prime is 131066371. The next prime is 131066437. The reversal of 131066424 is 424660131.

131066424 is a `hidden beast` number, since 1 + 3 + 10 + 6 + 642 + 4 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31767 + ... + 35654.

Almost surely, 2131066424 is an apocalyptic number.

It is an amenable number.

131066424 is an abundant number, since it is smaller than the sum of its proper divisors (237057696).

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

131066424 is an equidigital number, since it uses as much as digits as its factorization.

131066424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67442 (or 67426 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 131066424 is about 11448.4245204307. The cubic root of 131066424 is about 507.9611332820.

The spelling of 131066424 in words is "one hundred thirty-one million, sixty-six thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 67421 134842 202263 269684 404526 539368 606789 809052 1213578 1618104 1820367 2427156 3640734 4854312 5461101 7281468 10922202 14562936 16383303 21844404 32766606 43688808 65533212 131066424