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82997395 = 5138914347
BaseRepresentation
bin1001111001001…
…11000010010011
312210011201000121
410330213002103
5132221404040
612122531111
72025315625
oct474470223
9183151017
1082997395
1142939198
1223966a97
131426c7b0
14b046c15
157446c4a
hex4f27093

82997395 has 16 divisors (see below), whose sum is σ = 108470880. Its totient is φ = 60597504.

The previous prime is 82997381. The next prime is 82997413. The reversal of 82997395 is 59379928.

It is a cyclic number.

It is not a de Polignac number, because 82997395 - 215 = 82964627 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1389 + ... + 12958.

It is an arithmetic number, because the mean of its divisors is an integer number (6779430).

Almost surely, 282997395 is an apocalyptic number.

82997395 is a deficient number, since it is larger than the sum of its proper divisors (25473485).

82997395 is a wasteful number, since it uses less digits than its factorization.

82997395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14454.

The product of its digits is 1224720, while the sum is 52.

The square root of 82997395 is about 9110.2906100739. The cubic root of 82997395 is about 436.2025035660.

The spelling of 82997395 in words is "eighty-two million, nine hundred ninety-seven thousand, three hundred ninety-five".

Divisors: 1 5 13 65 89 445 1157 5785 14347 71735 186511 932555 1276883 6384415 16599479 82997395