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83704700437 = 3137149647757
BaseRepresentation
bin100110111110100110…
…0000101111000010101
322000001112011100121021
41031331030011320111
52332411400403222
6102241534121141
76022165133341
oct1157514057025
9260045140537
1083704700437
1132554137386
12142806501b1
137b7c813057
1440a0bc0621
15229d862ac7
hex137d305e15

83704700437 has 32 divisors (see below), whose sum is σ = 89591961600. Its totient is φ = 78062019840.

The previous prime is 83704700413. The next prime is 83704700441. The reversal of 83704700437 is 73400740738.

It is not a de Polignac number, because 83704700437 - 231 = 81557216789 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83704700393 and 83704700402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83704700477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110573863 + ... + 110574619.

It is an arithmetic number, because the mean of its divisors is an integer number (2799748800).

Almost surely, 283704700437 is an apocalyptic number.

It is an amenable number.

83704700437 is a deficient number, since it is larger than the sum of its proper divisors (5887261163).

83704700437 is a wasteful number, since it uses less digits than its factorization.

83704700437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its (nonzero) digits is 395136, while the sum is 43.

The spelling of 83704700437 in words is "eighty-three billion, seven hundred four million, seven hundred thousand, four hundred thirty-seven".

Divisors: 1 31 37 149 647 757 1147 4619 5513 20057 23467 23939 28009 96403 112793 170903 489779 742109 868279 2988493 3496583 3566911 4173341 15183149 18121823 72977071 110574241 129373571 561776513 2262289201 2700151627 83704700437