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131300111987 = 1172716418671
BaseRepresentation
bin111101001001000011…
…0001011011001110011
3110112220112022202222122
41322102012023121303
54122400312040422
6140152441024455
712325511352212
oct1722206133163
9415815282878
10131300111987
1150758543550
122154418512b
13c4c634b775
1464d8019079
153637076d42
hex1e9218b673

131300111987 has 8 divisors (see below), whose sum is σ = 143433518592. Its totient is φ = 119199544200.

The previous prime is 131300111981. The next prime is 131300111989. The reversal of 131300111987 is 789111003131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131300111987 - 212 = 131300107891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131300111981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8201339 + ... + 8217332.

It is an arithmetic number, because the mean of its divisors is an integer number (17929189824).

Almost surely, 2131300111987 is an apocalyptic number.

131300111987 is a deficient number, since it is larger than the sum of its proper divisors (12133406605).

131300111987 is a wasteful number, since it uses less digits than its factorization.

131300111987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419409.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 131300111987 in words is "one hundred thirty-one billion, three hundred million, one hundred eleven thousand, nine hundred eighty-seven".

Divisors: 1 11 727 7997 16418671 180605381 11936373817 131300111987