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12804085206 = 234112653203
BaseRepresentation
bin10111110110010111…
…01101010111010110
31020001100010220220000
423323023231113112
5202210321211311
65514311552130
7632203633323
oct137313552726
936040126800
1012804085206
115480632800
12259408b646
131290917ca3
1489672bb4a
154ee153056
hex2fb2ed5d6

12804085206 has 60 divisors (see below), whose sum is σ = 31536035916. Its totient is φ = 3880019880.

The previous prime is 12804085153. The next prime is 12804085241. The reversal of 12804085206 is 60258040821.

12804085206 is a `hidden beast` number, since 12 + 80 + 40 + 8 + 520 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 307000 + ... + 346203.

Almost surely, 212804085206 is an apocalyptic number.

12804085206 is an abundant number, since it is smaller than the sum of its proper divisors (18731950710).

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

12804085206 is a wasteful number, since it uses less digits than its factorization.

12804085206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653239 (or 653219 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 12804085206 in words is "twelve billion, eight hundred four million, eighty-five thousand, two hundred six".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 81 99 121 162 198 242 297 363 594 726 891 1089 1782 2178 3267 6534 9801 19602 653203 1306406 1959609 3919218 5878827 7185233 11757654 14370466 17636481 21555699 35272962 43111398 52909443 64667097 79037563 105818886 129334194 158075126 194001291 237112689 388002582 474225378 582003873 711338067 1164007746 1422676134 2134014201 4268028402 6402042603 12804085206