Base | Representation |
---|---|
bin | 101000110100110100110… |
… | …110001001110000110000 |
3 | 100221012111010200111202020 |
4 | 220310310312021300300 |
5 | 331431131031132110 |
6 | 5544455022551440 |
7 | 406455624463542 |
oct | 50646466116060 |
9 | 10835433614666 |
10 | 2805500255280 |
11 | 9918958337a8 |
12 | 393884438580 |
13 | 174732bb3968 |
14 | 99b034d7692 |
15 | 4ce9e0ded70 |
hex | 28d34d89c30 |
2805500255280 has 40 divisors (see below), whose sum is σ = 8697050792112. Its totient is φ = 748133401344.
The previous prime is 2805500255279. The next prime is 2805500255281. The reversal of 2805500255280 is 825520055082.
It is an interprime number because it is at equal distance from previous prime (2805500255279) and next prime (2805500255281).
It is a tau number, because it is divible by the number of its divisors (40).
It is a super-2 number, since 2×28055002552802 (a number of 26 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2805500255281) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5844791959 + ... + 5844792438.
Almost surely, 22805500255280 is an apocalyptic number.
2805500255280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2805500255280 is an abundant number, since it is smaller than the sum of its proper divisors (5891550536832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2805500255280 is a wasteful number, since it uses less digits than its factorization.
2805500255280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11689584413 (or 11689584407 counting only the distinct ones).
The product of its (nonzero) digits is 320000, while the sum is 42.
The spelling of 2805500255280 in words is "two trillion, eight hundred five billion, five hundred million, two hundred fifty-five thousand, two hundred eighty".
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