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82000079 = 721799349
BaseRepresentation
bin1001110001100…
…11100011001111
312201022000221222
410320303203033
5131443000304
612045313555
72013663200
oct470634317
9181260858
1082000079
1142317967
12235658bb
1313cb0875
14ac675a7
1572eb4be
hex4e338cf

82000079 has 12 divisors (see below), whose sum is σ = 95931000. Its totient is φ = 69885648.

The previous prime is 82000073. The next prime is 82000151. The reversal of 82000079 is 97000028.

It is a de Polignac number, because none of the positive numbers 2k-82000079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82000073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4097 + ... + 13445.

It is an arithmetic number, because the mean of its divisors is an integer number (7994250).

Almost surely, 282000079 is an apocalyptic number.

82000079 is a deficient number, since it is larger than the sum of its proper divisors (13930921).

82000079 is a wasteful number, since it uses less digits than its factorization.

82000079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9542 (or 9535 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 82000079 is about 9055.3895001816. The cubic root of 82000079 is about 434.4482880947.

The spelling of 82000079 in words is "eighty-two million, seventy-nine", and thus it is an aban number and an uban number.

Divisors: 1 7 49 179 1253 8771 9349 65443 458101 1673471 11714297 82000079