Base | Representation |
---|---|
bin | 1000001100111… |
… | …00101000000100 |
3 | 11210110100110101 |
4 | 10012130220010 |
5 | 120103031410 |
6 | 10454333444 |
7 | 1463532055 |
oct | 406345004 |
9 | 153410411 |
10 | 68798980 |
11 | 35920768 |
12 | 1b05a284 |
13 | 1133ac73 |
14 | 91cc72c |
15 | 608ed3a |
hex | 419ca04 |
68798980 has 24 divisors (see below), whose sum is σ = 150760512. Its totient is φ = 26322912.
The previous prime is 68798971. The next prime is 68798999. The reversal of 68798980 is 8989786.
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, 74322 + ... + 75241.
It is an arithmetic number, because the mean of its divisors is an integer number (6281688).
Almost surely, 268798980 is an apocalyptic number.
It is an amenable number.
68798980 is an abundant number, since it is smaller than the sum of its proper divisors (81961532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68798980 is a wasteful number, since it uses less digits than its factorization.
68798980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 149595 (or 149593 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 55.
The square root of 68798980 is about 8294.5150551434. The cubic root of 68798980 is about 409.7578979173.
The spelling of 68798980 in words is "sixty-eight million, seven hundred ninety-eight thousand, nine hundred eighty".
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