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83879331 = 361458357
BaseRepresentation
bin1001111111111…
…10010110100011
312211211111210220
410333332112203
5132433114311
612153454123
72035651104
oct477762643
9184744726
1083879331
1143390868
1224111343
13144bb053
14b1d63ab
15756d206
hex4ffe5a3

83879331 has 8 divisors (see below), whose sum is σ = 113672784. Its totient is φ = 55002720.

The previous prime is 83879293. The next prime is 83879347. The reversal of 83879331 is 13397838.

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

It is not a de Polignac number, because 83879331 - 27 = 83879203 is a prime.

It is a super-2 number, since 2×838793312 = 14071484338015122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (83879371) 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, 228996 + ... + 229361.

It is an arithmetic number, because the mean of its divisors is an integer number (14209098).

Almost surely, 283879331 is an apocalyptic number.

83879331 is a deficient number, since it is larger than the sum of its proper divisors (29793453).

83879331 is a wasteful number, since it uses less digits than its factorization.

83879331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458421.

The product of its digits is 108864, while the sum is 42.

The square root of 83879331 is about 9158.5659903721. The cubic root of 83879331 is about 437.7421023008.

The spelling of 83879331 in words is "eighty-three million, eight hundred seventy-nine thousand, three hundred thirty-one".

Divisors: 1 3 61 183 458357 1375071 27959777 83879331