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131044077 = 32411073319
BaseRepresentation
bin1111100111110…
…01001011101101
3100010120201200100
413303321023231
5232021402302
621000421313
73150566463
oct763711355
9303521610
10131044077
1167a7539a
1237a77839
13211c2a98
1413592833
15b787d1c
hex7cf92ed

131044077 has 24 divisors (see below), whose sum is σ = 195773760. Its totient is φ = 84409920.

The previous prime is 131044063. The next prime is 131044097. The reversal of 131044077 is 770440131.

It is not a de Polignac number, because 131044077 - 212 = 131039981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131044077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131044097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37824 + ... + 41142.

It is an arithmetic number, because the mean of its divisors is an integer number (8157240).

Almost surely, 2131044077 is an apocalyptic number.

It is an amenable number.

131044077 is a deficient number, since it is larger than the sum of its proper divisors (64729683).

131044077 is a wasteful number, since it uses less digits than its factorization.

131044077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 131044077 is about 11447.4484930049. The cubic root of 131044077 is about 507.9322622910.

The spelling of 131044077 in words is "one hundred thirty-one million, forty-four thousand, seventy-seven".

Divisors: 1 3 9 41 107 123 321 369 963 3319 4387 9957 13161 29871 39483 136079 355133 408237 1065399 1224711 3196197 14560453 43681359 131044077