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83086357 = 131634247
BaseRepresentation
bin1001111001111…
…00110000010101
312210100020001111
410330330300111
5132232230412
612124455021
72026136164
oct474746025
9183306044
1083086357
114299a012
12239aa471
13142a1133
14b06b3db
1574632a7
hex4f3cc15

83086357 has 4 divisors (see below), whose sum is σ = 83720736. Its totient is φ = 82451980.

The previous prime is 83086319. The next prime is 83086369. The reversal of 83086357 is 75368038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83086357 - 215 = 83053589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83086387) 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, 316993 + ... + 317254.

It is an arithmetic number, because the mean of its divisors is an integer number (20930184).

Almost surely, 283086357 is an apocalyptic number.

It is an amenable number.

83086357 is a deficient number, since it is larger than the sum of its proper divisors (634379).

83086357 is a wasteful number, since it uses less digits than its factorization.

83086357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634378.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 83086357 is about 9115.1718030984. The cubic root of 83086357 is about 436.3582979763.

The spelling of 83086357 in words is "eighty-three million, eighty-six thousand, three hundred fifty-seven".

Divisors: 1 131 634247 83086357