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131894168 = 2372355253
BaseRepresentation
bin1111101110010…
…00101110011000
3100012011220210012
413313020232120
5232231103133
621030541052
73161040050
oct767105630
9305156705
10131894168
11684a604a
1238207788
132142c9b3
1413734560
15b8a4b48
hex7dc8b98

131894168 has 16 divisors (see below), whose sum is σ = 282630480. Its totient is φ = 56526048.

The previous prime is 131894149. The next prime is 131894207. The reversal of 131894168 is 861498131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177571 + ... + 1177682.

It is an arithmetic number, because the mean of its divisors is an integer number (17664405).

Almost surely, 2131894168 is an apocalyptic number.

It is an amenable number.

131894168 is an abundant number, since it is smaller than the sum of its proper divisors (150736312).

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

131894168 is a wasteful number, since it uses less digits than its factorization.

131894168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355266 (or 2355262 counting only the distinct ones).

The product of its digits is 41472, while the sum is 41.

The square root of 131894168 is about 11484.5186229115. The cubic root of 131894168 is about 509.0282251284.

The spelling of 131894168 in words is "one hundred thirty-one million, eight hundred ninety-four thousand, one hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 56 2355253 4710506 9421012 16486771 18842024 32973542 65947084 131894168