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82860042 = 2315191457
BaseRepresentation
bin1001111000001…
…01100000001010
312202220201121110
410330011200022
5132203010132
612115551150
72024204316
oct474054012
9182821543
1082860042
1142854a81
12238bb4b6
1314222115
14b00cb46
15741b1cc
hex4f0580a

82860042 has 16 divisors (see below), whose sum is σ = 166819392. Its totient is φ = 27436800.

The previous prime is 82860031. The next prime is 82860059. The reversal of 82860042 is 24006828.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 82859991 and 82860009.

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, 44823 + ... + 46634.

It is an arithmetic number, because the mean of its divisors is an integer number (10426212).

Almost surely, 282860042 is an apocalyptic number.

82860042 is an abundant number, since it is smaller than the sum of its proper divisors (83959350).

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

82860042 is a wasteful number, since it uses less digits than its factorization.

82860042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91613.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 82860042 is about 9102.7491451759. The cubic root of 82860042 is about 435.9617457950.

The spelling of 82860042 in words is "eighty-two million, eight hundred sixty thousand, forty-two".

Divisors: 1 2 3 6 151 302 453 906 91457 182914 274371 548742 13810007 27620014 41430021 82860042