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82931383 is a prime number
BaseRepresentation
bin1001111000101…
…10111010110111
312210001100110201
410330112322313
5132212301013
612121301331
72024622313
oct474267267
9183040421
1082931383
11428a3637
1223934847
1314248732
14b02ab43
1574323dd
hex4f16eb7

82931383 has 2 divisors, whose sum is σ = 82931384. Its totient is φ = 82931382.

The previous prime is 82931369. The next prime is 82931437. The reversal of 82931383 is 38313928.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82931383 - 29 = 82930871 is a prime.

It is a super-2 number, since 2×829313832 = 13755228572585378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82931323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41465691 + 41465692.

It is an arithmetic number, because the mean of its divisors is an integer number (41465692).

Almost surely, 282931383 is an apocalyptic number.

82931383 is a deficient number, since it is larger than the sum of its proper divisors (1).

82931383 is an equidigital number, since it uses as much as digits as its factorization.

82931383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 82931383 is about 9106.6669533919. Note that the first 3 decimals coincide. The cubic root of 82931383 is about 436.0868283010.

The spelling of 82931383 in words is "eighty-two million, nine hundred thirty-one thousand, three hundred eighty-three".