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82590917 = 4310491831
BaseRepresentation
bin1001110110000…
…11110011000101
312202102001102212
410323003303011
5132120402132
612110113205
72022003563
oct473036305
9182361385
1082590917
1142690862
12237ab805
1314159786
14ad7ca33
1573b65b2
hex4ec3cc5

82590917 has 8 divisors (see below), whose sum is σ = 84638400. Its totient is φ = 80549280.

The previous prime is 82590901. The next prime is 82590923. The reversal of 82590917 is 71909528.

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 82590917 - 24 = 82590901 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 (82595917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44192 + ... + 46022.

It is an arithmetic number, because the mean of its divisors is an integer number (10579800).

Almost surely, 282590917 is an apocalyptic number.

It is an amenable number.

82590917 is a deficient number, since it is larger than the sum of its proper divisors (2047483).

82590917 is a wasteful number, since it uses less digits than its factorization.

82590917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 82590917 is about 9087.9545003262. The cubic root of 82590917 is about 435.4892403631.

The spelling of 82590917 in words is "eighty-two million, five hundred ninety thousand, nine hundred seventeen".

Divisors: 1 43 1049 1831 45107 78733 1920719 82590917