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131560101 = 3272720107
BaseRepresentation
bin1111101011101…
…11001010100101
3100011112221112100
413311313022211
5232134410401
621015442313
73155146101
oct765671245
9304487470
10131560101
1168298062
1238086399
132134391a
1413688901
15b83ab86
hex7d772a5

131560101 has 12 divisors (see below), whose sum is σ = 190302112. Its totient is φ = 87581736.

The previous prime is 131560073. The next prime is 131560111. The reversal of 131560101 is 101065131.

131560101 is a `hidden beast` number, since 1 + 3 + 1 + 560 + 101 = 666.

It is not a de Polignac number, because 131560101 - 27 = 131559973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131560111) 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 11 ways as a sum of consecutive naturals, for example, 3511 + ... + 16596.

Almost surely, 2131560101 is an apocalyptic number.

It is an amenable number.

131560101 is a deficient number, since it is larger than the sum of its proper divisors (58742011).

131560101 is a wasteful number, since it uses less digits than its factorization.

131560101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20840 (or 20837 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 131560101 is about 11469.9651699558. The cubic root of 131560101 is about 508.5980992011.

It can be divided in two parts, 1315 and 60101, that added together give a palindrome (61416).

The spelling of 131560101 in words is "one hundred thirty-one million, five hundred sixty thousand, one hundred one".

Divisors: 1 3 9 727 2181 6543 20107 60321 180963 14617789 43853367 131560101