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131044156 = 22232949117
BaseRepresentation
bin1111100111110…
…01001100111100
3100010120201210021
413303321030330
5232021403111
621000421524
73150566635
oct763711474
9303521707
10131044156
1167a75461
1237a778a4
13211c2b29
141359288c
15b787d71
hex7cf933c

131044156 has 24 divisors (see below), whose sum is σ = 247554720. Its totient is φ = 60510912.

The previous prime is 131044153. The next prime is 131044169. The reversal of 131044156 is 651440131.

It is a self number, because there is not a number n which added to its sum of digits gives 131044156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131044153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21891 + ... + 27226.

It is an arithmetic number, because the mean of its divisors is an integer number (10314780).

Almost surely, 2131044156 is an apocalyptic number.

It is an amenable number.

131044156 is a deficient number, since it is larger than the sum of its proper divisors (116510564).

131044156 is a wasteful number, since it uses less digits than its factorization.

131044156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49173 (or 49171 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 131044156 is about 11447.4519435549. The cubic root of 131044156 is about 507.9323643601.

Adding to 131044156 its reverse (651440131), we get a palindrome (782484287).

The spelling of 131044156 in words is "one hundred thirty-one million, forty-four thousand, one hundred fifty-six".

Divisors: 1 2 4 23 29 46 58 92 116 667 1334 2668 49117 98234 196468 1129691 1424393 2259382 2848786 4518764 5697572 32761039 65522078 131044156