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82450885 = 51111631289
BaseRepresentation
bin1001110101000…
…01100111000101
312202010221100111
410322201213011
5132101412020
612103113021
72020551406
oct472414705
9182127314
1082450885
11425a5630
1223742771
131410ab0a
14ad439ad
157389d5a
hex4ea19c5

82450885 has 16 divisors (see below), whose sum is σ = 108112320. Its totient is φ = 59866240.

The previous prime is 82450829. The next prime is 82450889. The reversal of 82450885 is 58805428.

It is a happy number.

It is not a de Polignac number, because 82450885 - 29 = 82450373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82450889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63321 + ... + 64609.

It is an arithmetic number, because the mean of its divisors is an integer number (6757020).

Almost surely, 282450885 is an apocalyptic number.

It is an amenable number.

82450885 is a deficient number, since it is larger than the sum of its proper divisors (25661435).

82450885 is a wasteful number, since it uses less digits than its factorization.

82450885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its (nonzero) digits is 102400, while the sum is 40.

The square root of 82450885 is about 9080.2469680070. The cubic root of 82450885 is about 435.2429787118.

The spelling of 82450885 in words is "eighty-two million, four hundred fifty thousand, eight hundred eighty-five".

Divisors: 1 5 11 55 1163 1289 5815 6445 12793 14179 63965 70895 1499107 7495535 16490177 82450885