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82025218 = 21118120599
BaseRepresentation
bin1001110001110…
…01101100000010
312201100022110001
410320321230002
5131444301333
612050030214
72014126402
oct470715402
9181308401
1082025218
1142334840
122357836a
1313cbc142
14ac72802
157303b7d
hex4e39b02

82025218 has 16 divisors (see below), whose sum is σ = 134971200. Its totient is φ = 37076400.

The previous prime is 82025201. The next prime is 82025233. The reversal of 82025218 is 81252028.

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, 6318 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (8435700).

Almost surely, 282025218 is an apocalyptic number.

82025218 is a deficient number, since it is larger than the sum of its proper divisors (52945982).

82025218 is a wasteful number, since it uses less digits than its factorization.

82025218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20793.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 82025218 is about 9056.7774622103. Note that the first 3 decimals coincide. The cubic root of 82025218 is about 434.4926802455.

The spelling of 82025218 in words is "eighty-two million, twenty-five thousand, two hundred eighteen".

Divisors: 1 2 11 22 181 362 1991 3982 20599 41198 226589 453178 3728419 7456838 41012609 82025218