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78798752580106 = 21319873718257027
BaseRepresentation
bin10001111010101011000011…
…101010000000001000001010
3101100000002100112220102020201
4101322223003222000020022
540312014321130030411
6435331351443242414
722412010355405516
oct2172530352001012
9340002315812221
1078798752580106
11231203aa609019
128a0788697940a
1334c78c8cbc140
141565c46915146
15919b0a4973c1
hex47aac3a8020a

78798752580106 has 32 divisors (see below), whose sum is σ = 134005124957760. Its totient is φ = 34450569893376.

The previous prime is 78798752580007. The next prime is 78798752580109. The reversal of 78798752580106 is 60108525789787.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (78798752580109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4812436 + ... + 13444591.

It is an arithmetic number, because the mean of its divisors is an integer number (4187660154930).

Almost surely, 278798752580106 is an apocalyptic number.

78798752580106 is a deficient number, since it is larger than the sum of its proper divisors (55206372377654).

78798752580106 is a wasteful number, since it uses less digits than its factorization.

78798752580106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18265798.

The product of its (nonzero) digits is 474163200, while the sum is 73.

The spelling of 78798752580106 in words is "seventy-eight trillion, seven hundred ninety-eight billion, seven hundred fifty-two million, five hundred eighty thousand, one hundred six".

Divisors: 1 2 13 19 26 38 247 494 8737 17474 113581 166003 227162 332006 2158039 4316078 18257027 36514054 237341351 346883513 474682702 693767026 4509485669 9018971338 159511644899 319023289798 2073651383687 3030721253081 4147302767374 6061442506162 39399376290053 78798752580106