Base | Representation |
---|---|
bin | 101000110110001010001… |
… | …011010101100101100010 |
3 | 100221100011220112011211100 |
4 | 220312022023111211202 |
5 | 331442044024401343 |
6 | 5545253043255230 |
7 | 406536250150524 |
oct | 50661213254542 |
9 | 10840156464740 |
10 | 2806931872098 |
11 | 99245a9576a2 |
12 | 39400397a516 |
13 | 1749006822c3 |
14 | 99bdb6b9a14 |
15 | 4d034b2c9d3 |
hex | 28d8a2d5962 |
2806931872098 has 48 divisors (see below), whose sum is σ = 6256758185496. Its totient is φ = 908905620480.
The previous prime is 2806931872093. The next prime is 2806931872099. The reversal of 2806931872098 is 8902781396082.
2806931872098 is a `hidden beast` number, since 280 + 6 + 93 + 187 + 2 + 0 + 98 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 1359152593929 + 1447779278169 = 1165827^2 + 1203237^2 .
It is not an unprimeable number, because it can be changed into a prime (2806931872093) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7989915 + ... + 8333822.
Almost surely, 22806931872098 is an apocalyptic number.
2806931872098 is an abundant number, since it is smaller than the sum of its proper divisors (3449826313398).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2806931872098 is a wasteful number, since it uses less digits than its factorization.
2806931872098 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16324019 (or 16324016 counting only the distinct ones).
The product of its (nonzero) digits is 20901888, while the sum is 63.
The spelling of 2806931872098 in words is "two trillion, eight hundred six billion, nine hundred thirty-one million, eight hundred seventy-two thousand, ninety-eight".
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