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83688585023 = 313267375671
BaseRepresentation
bin100110111110000111…
…0100111011100111111
322000000101211121102002
41031330032213130333
52332343234210043
6102240200452515
76021611143541
oct1157416473477
9260011747362
1083688585023
113254602a65a
121427717a13b
137b7938cac4
14409c9c7691
15229c22cbb8
hex137c3a773f

83688585023 has 4 divisors (see below), whose sum is σ = 83955961008. Its totient is φ = 83421209040.

The previous prime is 83688584999. The next prime is 83688585047. The reversal of 83688585023 is 32058588638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32058588638 = 216029294319.

It is an interprime number because it is at equal distance from previous prime (83688584999) and next prime (83688585047).

It is a cyclic number.

It is not a de Polignac number, because 83688585023 - 216 = 83688519487 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 83688585023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83688585523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133687523 + ... + 133688148.

It is an arithmetic number, because the mean of its divisors is an integer number (20988990252).

Almost surely, 283688585023 is an apocalyptic number.

83688585023 is a deficient number, since it is larger than the sum of its proper divisors (267375985).

83688585023 is a wasteful number, since it uses less digits than its factorization.

83688585023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267375984.

The product of its (nonzero) digits is 11059200, while the sum is 56.

The spelling of 83688585023 in words is "eighty-three billion, six hundred eighty-eight million, five hundred eighty-five thousand, twenty-three".

Divisors: 1 313 267375671 83688585023