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83508130439 = 1728317357749
BaseRepresentation
bin100110111000101111…
…0001111001010000111
321222112211021120020222
41031301132033022013
52332011040133224
6102210233014555
76014260253066
oct1156136171207
9258484246228
1083508130439
1132463187438
121422685445b
137b4ab8a046
144082a521dd
15228b484b5e
hex137178f287

83508130439 has 8 divisors (see below), whose sum is σ = 88732818000. Its totient is φ = 78318158976.

The previous prime is 83508130427. The next prime is 83508130487. The reversal of 83508130439 is 93403180538.

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

It is not a de Polignac number, because 83508130439 - 24 = 83508130423 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 83508130439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83508130939) 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, 8674064 + ... + 8683685.

It is an arithmetic number, because the mean of its divisors is an integer number (11091602250).

Almost surely, 283508130439 is an apocalyptic number.

83508130439 is a deficient number, since it is larger than the sum of its proper divisors (5224687561).

83508130439 is a wasteful number, since it uses less digits than its factorization.

83508130439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17358049.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 83508130439 in words is "eighty-three billion, five hundred eight million, one hundred thirty thousand, four hundred thirty-nine".

Divisors: 1 17 283 4811 17357749 295081733 4912242967 83508130439