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131933854 = 21353671429
BaseRepresentation
bin1111101110100…
…10011010011110
3100012020221020001
413313102122132
5232233340404
621031444514
73161263543
oct767223236
9305227201
10131933854
1168522948
123822673a
1321444a90
1413744bca
15b8b17a4
hex7dd269e

131933854 has 32 divisors (see below), whose sum is σ = 220540320. Its totient is φ = 58810752.

The previous prime is 131933843. The next prime is 131933881. The reversal of 131933854 is 458339131.

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, 91612 + ... + 93040.

It is an arithmetic number, because the mean of its divisors is an integer number (6891885).

Almost surely, 2131933854 is an apocalyptic number.

131933854 is a deficient number, since it is larger than the sum of its proper divisors (88606466).

131933854 is a wasteful number, since it uses less digits than its factorization.

131933854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its digits is 38880, while the sum is 37.

The square root of 131933854 is about 11486.2462972026. The cubic root of 131933854 is about 509.0792743109.

The spelling of 131933854 in words is "one hundred thirty-one million, nine hundred thirty-three thousand, eight hundred fifty-four".

Divisors: 1 2 13 26 53 67 106 134 689 871 1378 1429 1742 2858 3551 7102 18577 37154 46163 75737 92326 95743 151474 191486 984581 1244659 1969162 2489318 5074379 10148758 65966927 131933854