Base | Representation |
---|---|
bin | 11010000101011000… |
… | …001011001100101010 |
3 | 2200021220001222001210 |
4 | 122011120023030222 |
5 | 424324410321301 |
6 | 20511054053550 |
7 | 2011023625341 |
oct | 320530131452 |
9 | 80256058053 |
10 | 28007510826 |
11 | 10972567469 |
12 | 55177aa2b6 |
13 | 284464a619 |
14 | 14d9986b58 |
15 | addc4bad6 |
hex | 68560b32a |
28007510826 has 16 divisors (see below), whose sum is σ = 58450457664. Its totient is φ = 8929930944.
The previous prime is 28007510813. The next prime is 28007510831. The reversal of 28007510826 is 62801570082.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101476351 + ... + 101476626.
It is an arithmetic number, because the mean of its divisors is an integer number (3653153604).
Almost surely, 228007510826 is an apocalyptic number.
28007510826 is an abundant number, since it is smaller than the sum of its proper divisors (30442946838).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28007510826 is a wasteful number, since it uses less digits than its factorization.
28007510826 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 202953005.
The product of its (nonzero) digits is 53760, while the sum is 39.
It can be divided in two parts, 2800 and 7510826, that added together give a triangular number (7513626 = T3876).
The spelling of 28007510826 in words is "twenty-eight billion, seven million, five hundred ten thousand, eight hundred twenty-six".
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