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82814459 = 7213294483
BaseRepresentation
bin1001110111110…
…10010111111011
312202211102002012
410323322113323
5132200030314
612115000135
72023624400
oct473722773
9182742065
1082814459
1142823802
122389904b
1314207450
14adda2a7
15740c93e
hex4efa5fb

82814459 has 24 divisors (see below), whose sum is σ = 107346960. Its totient is φ = 63249984.

The previous prime is 82814443. The next prime is 82814477. The reversal of 82814459 is 95441828.

It is not a de Polignac number, because 82814459 - 24 = 82814443 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82814419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16232 + ... + 20714.

It is an arithmetic number, because the mean of its divisors is an integer number (4472790).

Almost surely, 282814459 is an apocalyptic number.

82814459 is a deficient number, since it is larger than the sum of its proper divisors (24532501).

82814459 is a wasteful number, since it uses less digits than its factorization.

82814459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4539 (or 4532 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 82814459 is about 9100.2449967020. The cubic root of 82814459 is about 435.8817873133.

The spelling of 82814459 in words is "eighty-two million, eight hundred fourteen thousand, four hundred fifty-nine".

Divisors: 1 7 13 29 49 91 203 377 637 1421 2639 4483 18473 31381 58279 130007 219667 407953 910049 1690091 2855671 6370343 11830637 82814459