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86731325849 = 7173172299163
BaseRepresentation
bin101000011000110010…
…1110000000110011001
322021212110021212010202
41100301211300012121
52410111204411344
6103502133151545
76160166051210
oct1206145600631
9267773255122
1086731325849
11338676328a3
121498618b5b5
13824288a56c
1442aab58077
1523c941594e
hex1431970199

86731325849 has 16 divisors (see below), whose sum is σ = 105283317888. Its totient is φ = 69747378432.

The previous prime is 86731325743. The next prime is 86731325861. The reversal of 86731325849 is 94852313768.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86731325849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86731325794 and 86731325803.

It is not an unprimeable number, because it can be changed into a prime (86731385849) 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, 1111859 + ... + 1187304.

It is an arithmetic number, because the mean of its divisors is an integer number (6580207368).

Almost surely, 286731325849 is an apocalyptic number.

It is an amenable number.

86731325849 is a deficient number, since it is larger than the sum of its proper divisors (18551992039).

86731325849 is a wasteful number, since it uses less digits than its factorization.

86731325849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2299504.

The product of its digits is 8709120, while the sum is 56.

The spelling of 86731325849 in words is "eighty-six billion, seven hundred thirty-one million, three hundred twenty-five thousand, eight hundred forty-nine".

Divisors: 1 7 17 119 317 2219 5389 37723 2299163 16094141 39085771 273600397 728834671 5101842697 12390189407 86731325849