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82931417 = 31286297
BaseRepresentation
bin1001111000101…
…10111011011001
312210001100111222
410330112323121
5132212301132
612121301425
72024622362
oct474267331
9183040458
1082931417
11428a3668
1223934875
131424875a
14b02ab69
157432412
hex4f16ed9

82931417 has 6 divisors (see below), whose sum is σ = 85693914. Its totient is φ = 80255280.

The previous prime is 82931383. The next prime is 82931437. The reversal of 82931417 is 71413928.

It can be written as a sum of positive squares in only one way, i.e., 50395801 + 32535616 = 7099^2 + 5704^2 .

It is not a de Polignac number, because 82931417 - 28 = 82931161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82931437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42188 + ... + 44109.

It is an arithmetic number, because the mean of its divisors is an integer number (14282319).

Almost surely, 282931417 is an apocalyptic number.

It is an amenable number.

82931417 is a deficient number, since it is larger than the sum of its proper divisors (2762497).

82931417 is an equidigital number, since it uses as much as digits as its factorization.

82931417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86359 (or 86328 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 82931417 is about 9106.6688201559. The cubic root of 82931417 is about 436.0868878963.

The spelling of 82931417 in words is "eighty-two million, nine hundred thirty-one thousand, four hundred seventeen".

Divisors: 1 31 961 86297 2675207 82931417