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672082090 = 25641104849
BaseRepresentation
bin101000000011110…
…010100010101010
31201211122022022021
4220003302202222
52334023111330
6150405015054
722440414001
oct5003624252
91654568267
10672082090
11315411249
121690b448a
13a9316014
146538bc38
153e00a67a
hex280f28aa

672082090 has 16 divisors (see below), whose sum is σ = 1211646600. Its totient is φ = 268410880.

The previous prime is 672082049. The next prime is 672082091. The reversal of 672082090 is 90280276.

It can be written as a sum of positive squares in 4 ways, for example, as 531256401 + 140825689 = 23049^2 + 11867^2 .

It is not an unprimeable number, because it can be changed into a prime (672082091) 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, 46015 + ... + 58834.

Almost surely, 2672082090 is an apocalyptic number.

672082090 is a deficient number, since it is larger than the sum of its proper divisors (539564510).

672082090 is a wasteful number, since it uses less digits than its factorization.

672082090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105497.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 672082090 is about 25924.5460905297. The cubic root of 672082090 is about 875.9394926688.

The spelling of 672082090 in words is "six hundred seventy-two million, eighty-two thousand, ninety".

Divisors: 1 2 5 10 641 1282 3205 6410 104849 209698 524245 1048490 67208209 134416418 336041045 672082090