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86938493613 = 3131221217541
BaseRepresentation
bin101000011110111110…
…0000010001010101101
322022101220010001212220
41100331330002022231
52411022223243423
6103534453345553
76165263000646
oct1207574021255
9268356101786
1086938493613
1133963571024
1214a236382b9
13827678423a
1442ca4846cd
1523dc6d89e3
hex143df022ad

86938493613 has 8 divisors (see below), whose sum is σ = 116802862176. Its totient is φ = 57516560400.

The previous prime is 86938493611. The next prime is 86938493641. The reversal of 86938493613 is 31639483968.

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

It is not a de Polignac number, because 86938493613 - 21 = 86938493611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86938493611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110608378 + ... + 110609163.

It is an arithmetic number, because the mean of its divisors is an integer number (14600357772).

Almost surely, 286938493613 is an apocalyptic number.

It is an amenable number.

86938493613 is a deficient number, since it is larger than the sum of its proper divisors (29864368563).

86938493613 is a wasteful number, since it uses less digits than its factorization.

86938493613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221217675.

The product of its digits is 20155392, while the sum is 60.

The spelling of 86938493613 in words is "eighty-six billion, nine hundred thirty-eight million, four hundred ninety-three thousand, six hundred thirteen".

Divisors: 1 3 131 393 221217541 663652623 28979497871 86938493613