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82061256444 = 223173371193653
BaseRepresentation
bin100110001101100111…
…0110110011011111100
321211210222201202021020
41030123032312123330
52321030140201234
6101410505304140
75633361112416
oct1143316663374
9254728652236
1082061256444
1131890492602
1213aa2195050
13797a1a8c9b
143d8681b9b6
152204431549
hex131b3b66fc

82061256444 has 48 divisors (see below), whose sum is σ = 203341346208. Its totient is φ = 25668292608.

The previous prime is 82061256283. The next prime is 82061256451. The reversal of 82061256444 is 44465216028.

It is a junction number, because it is equal to n+sod(n) for n = 82061256396 and 82061256405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528079 + ... + 665574.

It is an arithmetic number, because the mean of its divisors is an integer number (4236278046).

Almost surely, 282061256444 is an apocalyptic number.

It is an amenable number.

82061256444 is an abundant number, since it is smaller than the sum of its proper divisors (121280089764).

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

82061256444 is a wasteful number, since it uses less digits than its factorization.

82061256444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194014 (or 1194012 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 82061256444 in words is "eighty-two billion, sixty-one million, two hundred fifty-six thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 337 674 1011 1348 2022 4044 5729 11458 17187 22916 34374 68748 1193653 2387306 3580959 4774612 7161918 14323836 20292101 40584202 60876303 81168404 121752606 243505212 402261061 804522122 1206783183 1609044244 2413566366 4827132732 6838438037 13676876074 20515314111 27353752148 41030628222 82061256444