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83231469 = 341027549
BaseRepresentation
bin1001111011000…
…00001011101101
312210121121010000
410331200023231
5132301401334
612131534513
72030312226
oct475401355
9183547100
1083231469
1142a89042
1223a5a439
13143221b9
14b0a824d
157491299
hex4f602ed

83231469 has 10 divisors (see below), whose sum is σ = 124333550. Its totient is φ = 55487592.

The previous prime is 83231459. The next prime is 83231471. The reversal of 83231469 is 96413238.

It can be written as a sum of positive squares in only one way, i.e., 49533444 + 33698025 = 7038^2 + 5805^2 .

It is not a de Polignac number, because 83231469 - 24 = 83231453 is a prime.

It is a super-2 number, since 2×832314692 = 13854954863795922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83231429) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 513694 + ... + 513855.

It is an arithmetic number, because the mean of its divisors is an integer number (12433355).

Almost surely, 283231469 is an apocalyptic number.

It is an amenable number.

83231469 is a deficient number, since it is larger than the sum of its proper divisors (41102081).

83231469 is a wasteful number, since it uses less digits than its factorization.

83231469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027561 (or 1027552 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 83231469 is about 9123.1282463857. The cubic root of 83231469 is about 436.6121864190.

The spelling of 83231469 in words is "eighty-three million, two hundred thirty-one thousand, four hundred sixty-nine".

Divisors: 1 3 9 27 81 1027549 3082647 9247941 27743823 83231469