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82225892 = 2272936639
BaseRepresentation
bin1001110011010…
…10101011100100
312201201111201102
410321222223210
5132022212032
612054215232
72015623430
oct471525344
9181644642
1082225892
1142461591
1223654518
131405c598
14acc59c0
157343362
hex4e6aae4

82225892 has 12 divisors (see below), whose sum is σ = 164451840. Its totient is φ = 35239656.

The previous prime is 82225883. The next prime is 82225903. The reversal of 82225892 is 29852228.

82225892 is an admirable number.

It is a super-2 number, since 2×822258922 = 13522194630391328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1468292 + ... + 1468347.

It is an arithmetic number, because the mean of its divisors is an integer number (13704320).

Almost surely, 282225892 is an apocalyptic number.

It is an amenable number.

82225892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82225892 is a wasteful number, since it uses less digits than its factorization.

82225892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936650 (or 2936648 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 82225892 is about 9067.8493591369. The cubic root of 82225892 is about 434.8467192366.

The spelling of 82225892 in words is "eighty-two million, two hundred twenty-five thousand, eight hundred ninety-two".

Divisors: 1 2 4 7 14 28 2936639 5873278 11746556 20556473 41112946 82225892