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83963131 = 764718539
BaseRepresentation
bin1010000000100…
…10110011111011
312211222202202121
411000102303323
5132443310011
612155342111
72036450320
oct500226373
9184882677
1083963131
114343881a
1224151937
131451a235
14b218b47
157587e71
hex5012cfb

83963131 has 8 divisors (see below), whose sum is σ = 96111360. Its totient is φ = 71853288.

The previous prime is 83963123. The next prime is 83963161. The reversal of 83963131 is 13136938.

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

It is a cyclic number.

It is not a de Polignac number, because 83963131 - 23 = 83963123 is a prime.

It is a super-2 number, since 2×839631312 = 14099614734646322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83963161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741 + ... + 13798.

It is an arithmetic number, because the mean of its divisors is an integer number (12013920).

Almost surely, 283963131 is an apocalyptic number.

83963131 is a deficient number, since it is larger than the sum of its proper divisors (12148229).

83963131 is a wasteful number, since it uses less digits than its factorization.

83963131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19193.

The product of its digits is 11664, while the sum is 34.

The square root of 83963131 is about 9163.1398003086. The cubic root of 83963131 is about 437.8878298139.

The spelling of 83963131 in words is "eighty-three million, nine hundred sixty-three thousand, one hundred thirty-one".

Divisors: 1 7 647 4529 18539 129773 11994733 83963131