Base | Representation |
---|---|
bin | 1000001100110… |
… | …11100110111111 |
3 | 11210110010202010 |
4 | 10012123212333 |
5 | 120102413230 |
6 | 10454302303 |
7 | 1463513655 |
oct | 406334677 |
9 | 153403663 |
10 | 68794815 |
11 | 35918621 |
12 | 1b057993 |
13 | 113390bb |
14 | 91cadd5 |
15 | 608d9b0 |
hex | 419b9bf |
68794815 has 32 divisors (see below), whose sum is σ = 114670080. Its totient is φ = 35176064.
The previous prime is 68794813. The next prime is 68794819. The reversal of 68794815 is 51849786.
It is a cyclic number.
It is not a de Polignac number, because 68794815 - 21 = 68794813 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68794813) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72172 + ... + 73118.
It is an arithmetic number, because the mean of its divisors is an integer number (3583440).
Almost surely, 268794815 is an apocalyptic number.
68794815 is a deficient number, since it is larger than the sum of its proper divisors (45875265).
68794815 is a wasteful number, since it uses less digits than its factorization.
68794815 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1151.
The product of its digits is 483840, while the sum is 48.
The square root of 68794815 is about 8294.2639818130. The cubic root of 68794815 is about 409.7496290152.
The spelling of 68794815 in words is "sixty-eight million, seven hundred ninety-four thousand, eight hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •