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80842854 = 23173137691
BaseRepresentation
bin1001101000110…
…01000001100110
312122010020112210
410310121001212
5131143432404
612004424250
72001103311
oct464310146
9178106483
1080842854
11416a7484
12230a8086
1313996c11
14aa45978
15716d689
hex4d19066

80842854 has 64 divisors (see below), whose sum is σ = 181757952. Its totient is φ = 23846400.

The previous prime is 80842849. The next prime is 80842877. The reversal of 80842854 is 45824808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116649 + ... + 117339.

It is an arithmetic number, because the mean of its divisors is an integer number (2839968).

Almost surely, 280842854 is an apocalyptic number.

80842854 is an abundant number, since it is smaller than the sum of its proper divisors (100915098).

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

80842854 is a wasteful number, since it uses less digits than its factorization.

80842854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 80842854 is about 8991.2654281808. The cubic root of 80842854 is about 432.3948828481.

The spelling of 80842854 in words is "eighty million, eight hundred forty-two thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 17 31 34 37 51 62 74 93 102 111 186 222 527 629 691 1054 1147 1258 1382 1581 1887 2073 2294 3162 3441 3774 4146 6882 11747 19499 21421 23494 25567 35241 38998 42842 51134 58497 64263 70482 76701 116994 128526 153402 364157 434639 728314 792577 869278 1092471 1303917 1585154 2184942 2377731 2607834 4755462 13473809 26947618 40421427 80842854