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131252026655 = 51731009150383
BaseRepresentation
bin111101000111100111…
…0101111110100011111
3110112210011211210022102
41322033032233310133
54122301004323110
6140144002235315
712324355550561
oct1721716576437
9415704753272
10131252026655
1150733390302
1221530055b3b
13c4b93b39c9
1464d189d331
153632c295a5
hex1e8f3afd1f

131252026655 has 16 divisors (see below), whose sum is σ = 158570904960. Its totient is φ = 104290518528.

The previous prime is 131252026651. The next prime is 131252026673. The reversal of 131252026655 is 556620252131.

It is a cyclic number.

It is not a de Polignac number, because 131252026655 - 22 = 131252026651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131252026651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797594 + ... + 947976.

It is an arithmetic number, because the mean of its divisors is an integer number (9910681560).

Almost surely, 2131252026655 is an apocalyptic number.

131252026655 is a deficient number, since it is larger than the sum of its proper divisors (27318878305).

131252026655 is a wasteful number, since it uses less digits than its factorization.

131252026655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151570.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 131252026655 its reverse (556620252131), we get a palindrome (687872278786).

The spelling of 131252026655 in words is "one hundred thirty-one billion, two hundred fifty-two million, twenty-six thousand, six hundred fifty-five".

Divisors: 1 5 173 865 1009 5045 150383 174557 751915 872785 26016259 130081295 151736447 758682235 26250405331 131252026655