Base | Representation |
---|---|
bin | 101101001010… |
… | …1011010101110 |
3 | 1122120002210110 |
4 | 1122111122232 |
5 | 22030240221 |
6 | 2203320450 |
7 | 405165621 |
oct | 132253256 |
9 | 48502713 |
10 | 23680686 |
11 | 12404717 |
12 | 7b20126 |
13 | 4ba1853 |
14 | 3205db8 |
15 | 212b776 |
hex | 16956ae |
23680686 has 16 divisors (see below), whose sum is σ = 47797200. Its totient is φ = 7820928.
The previous prime is 23680673. The next prime is 23680687. The reversal of 23680686 is 68608632.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23680687) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17451 + ... + 18758.
It is an arithmetic number, because the mean of its divisors is an integer number (2987325).
Almost surely, 223680686 is an apocalyptic number.
23680686 is an abundant number, since it is smaller than the sum of its proper divisors (24116514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23680686 is a wasteful number, since it uses less digits than its factorization.
23680686 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36323.
The product of its (nonzero) digits is 82944, while the sum is 39.
The square root of 23680686 is about 4866.2805097939. The cubic root of 23680686 is about 287.1649470465.
The spelling of 23680686 in words is "twenty-three million, six hundred eighty thousand, six hundred eighty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •