Base | Representation |
---|---|
bin | 11001000011110111… |
… | …111100000111000100 |
3 | 2120110022011112101201 |
4 | 121003313330013010 |
5 | 420102041311010 |
6 | 20210035232244 |
7 | 1641550553650 |
oct | 310367740704 |
9 | 76408145351 |
10 | 26908541380 |
11 | 10459196456 |
12 | 526b748684 |
13 | 26caa6aa46 |
14 | 1433a35a60 |
15 | a7751b23a |
hex | 643dfc1c4 |
26908541380 has 48 divisors (see below), whose sum is σ = 67979479680. Its totient is φ = 8740217088.
The previous prime is 26908541357. The next prime is 26908541389. The reversal of 26908541380 is 8314580962.
It is a self number, because there is not a number n which added to its sum of digits gives 26908541380.
It is not an unprimeable number, because it can be changed into a prime (26908541389) 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, 5055337 + ... + 5060656.
It is an arithmetic number, because the mean of its divisors is an integer number (1416239160).
Almost surely, 226908541380 is an apocalyptic number.
26908541380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
26908541380 is an abundant number, since it is smaller than the sum of its proper divisors (41070938300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
26908541380 is a wasteful number, since it uses less digits than its factorization.
26908541380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10116028 (or 10116026 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 46.
The spelling of 26908541380 in words is "twenty-six billion, nine hundred eight million, five hundred forty-one thousand, three hundred eighty".
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