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131072739479 = 1179155996749
BaseRepresentation
bin111101000010010001…
…0110100100010010111
3110112022200111001112122
41322010202310202113
54121414110130404
6140114115410155
712320050621463
oct1720442644227
9415280431478
10131072739479
1150651165190
122149bbb395b
13c48b1cc416
1464b5b4d4a3
1536221123be
hex1e848b4897

131072739479 has 16 divisors (see below), whose sum is σ = 144892800000. Its totient is φ = 117572039520.

The previous prime is 131072739451. The next prime is 131072739509. The reversal of 131072739479 is 974937270131.

It is a cyclic number.

It is not a de Polignac number, because 131072739479 - 216 = 131072673943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131072739479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131072739379) 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 15 ways as a sum of consecutive naturals, for example, 1306397 + ... + 1403145.

It is an arithmetic number, because the mean of its divisors is an integer number (9055800000).

Almost surely, 2131072739479 is an apocalyptic number.

131072739479 is a deficient number, since it is larger than the sum of its proper divisors (13820060521).

131072739479 is a wasteful number, since it uses less digits than its factorization.

131072739479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98398.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 131072739479 in words is "one hundred thirty-one billion, seventy-two million, seven hundred thirty-nine thousand, four hundred seventy-nine".

Divisors: 1 11 79 869 1559 17149 96749 123161 1064239 1354771 7643171 84074881 150831691 1659148601 11915703589 131072739479