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82481615 = 538942407
BaseRepresentation
bin1001110101010…
…01000111001111
312202012111111122
410322221013033
5132103402430
612103511155
72021040116
oct472510717
9182174448
1082481615
1142616727
12237584bb
131411bab8
14ad50c7d
157393ee5
hex4ea91cf

82481615 has 8 divisors (see below), whose sum is σ = 99234720. Its totient is φ = 65814112.

The previous prime is 82481593. The next prime is 82481629. The reversal of 82481615 is 51618428.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82481615 - 222 = 78287311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19259 + ... + 23148.

It is an arithmetic number, because the mean of its divisors is an integer number (12404340).

Almost surely, 282481615 is an apocalyptic number.

82481615 is a deficient number, since it is larger than the sum of its proper divisors (16753105).

82481615 is a wasteful number, since it uses less digits than its factorization.

82481615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42801.

The product of its digits is 15360, while the sum is 35.

The square root of 82481615 is about 9081.9389449610. The cubic root of 82481615 is about 435.2970446583.

The spelling of 82481615 in words is "eighty-two million, four hundred eighty-one thousand, six hundred fifteen".

Divisors: 1 5 389 1945 42407 212035 16496323 82481615