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86613431668 = 22107202367831
BaseRepresentation
bin101000010101010010…
…0000001010101110100
322021120020110012201121
41100222210001111310
52404341014303133
6103442322233324
76154235010331
oct1205244012564
9267506405647
1086613431668
113380702a195
12149527b5844
13822431ccaa
144299229988
1523bddc902d
hex142a901574

86613431668 has 12 divisors (see below), whose sum is σ = 152990080992. Its totient is φ = 42901979960.

The previous prime is 86613431659. The next prime is 86613431743.

86613431668 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101183488 + ... + 101184343.

It is an arithmetic number, because the mean of its divisors is an integer number (12749173416).

Almost surely, 286613431668 is an apocalyptic number.

It is an amenable number.

86613431668 is a deficient number, since it is larger than the sum of its proper divisors (66376649324).

86613431668 is a wasteful number, since it uses less digits than its factorization.

86613431668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202367942 (or 202367940 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The spelling of 86613431668 in words is "eighty-six billion, six hundred thirteen million, four hundred thirty-one thousand, six hundred sixty-eight".

Divisors: 1 2 4 107 214 428 202367831 404735662 809471324 21653357917 43306715834 86613431668