Base | Representation |
---|---|
bin | 1000001100111… |
… | …10011110101111 |
3 | 11210110201212200 |
4 | 10012132132233 |
5 | 120103302300 |
6 | 10454432543 |
7 | 1463563155 |
oct | 406363657 |
9 | 153421780 |
10 | 68806575 |
11 | 35926442 |
12 | 1b062753 |
13 | 11341566 |
14 | 91d13d5 |
15 | 6092200 |
hex | 419e7af |
68806575 has 36 divisors (see below), whose sum is σ = 124478640. Its totient is φ = 36328320.
The previous prime is 68806559. The next prime is 68806601. The reversal of 68806575 is 57560886.
It is not a de Polignac number, because 68806575 - 24 = 68806559 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 68806575.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21691 + ... + 24659.
It is an arithmetic number, because the mean of its divisors is an integer number (3457740).
Almost surely, 268806575 is an apocalyptic number.
68806575 is a deficient number, since it is larger than the sum of its proper divisors (55672065).
68806575 is a wasteful number, since it uses less digits than its factorization.
68806575 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3088 (or 3080 counting only the distinct ones).
The product of its (nonzero) digits is 403200, while the sum is 45.
The square root of 68806575 is about 8294.9728751817. The cubic root of 68806575 is about 409.7729756443.
The spelling of 68806575 in words is "sixty-eight million, eight hundred six thousand, five hundred seventy-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •