Base | Representation |
---|---|
bin | 1000000111110… |
… | …01011110100011 |
3 | 11202012101210010 |
4 | 10003321132203 |
5 | 114420140343 |
6 | 10432140003 |
7 | 1455046563 |
oct | 403713643 |
9 | 152171703 |
10 | 68130723 |
11 | 35504691 |
12 | 1a997603 |
13 | 11165a4b |
14 | 9096da3 |
15 | 5eabd33 |
hex | 40f97a3 |
68130723 has 8 divisors (see below), whose sum is σ = 91116736. Its totient is φ = 45282600.
The previous prime is 68130719. The next prime is 68130731. The reversal of 68130723 is 32703186.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 68130723 - 22 = 68130719 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68130743) 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, 33313 + ... + 35298.
It is an arithmetic number, because the mean of its divisors is an integer number (11389592).
Almost surely, 268130723 is an apocalyptic number.
68130723 is a deficient number, since it is larger than the sum of its proper divisors (22986013).
68130723 is a wasteful number, since it uses less digits than its factorization.
68130723 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68945.
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 68130723 is about 8254.1336916723. The cubic root of 68130723 is about 408.4268948270.
The spelling of 68130723 in words is "sixty-eight million, one hundred thirty thousand, seven hundred twenty-three".
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