Base | Representation |
---|---|
bin | 1000001011100… |
… | …10110101100100 |
3 | 11210010122122211 |
4 | 10011302311210 |
5 | 120032042222 |
6 | 10450533204 |
7 | 1462220041 |
oct | 405626544 |
9 | 153118584 |
10 | 68627812 |
11 | 35814100 |
12 | 1ab97204 |
13 | 112ab096 |
14 | 91861c8 |
15 | 6059277 |
hex | 4172d64 |
68627812 has 18 divisors (see below), whose sum is σ = 132010214. Its totient is φ = 31194240.
The previous prime is 68627807. The next prime is 68627813. The reversal of 68627812 is 21872686.
It can be written as a sum of positive squares in only one way, i.e., 54967396 + 13660416 = 7414^2 + 3696^2 .
It is not an unprimeable number, because it can be changed into a prime (68627813) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70413 + ... + 71380.
Almost surely, 268627812 is an apocalyptic number.
It is an amenable number.
68627812 is a deficient number, since it is larger than the sum of its proper divisors (63382402).
68627812 is a wasteful number, since it uses less digits than its factorization.
68627812 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 141819 (or 141806 counting only the distinct ones).
The product of its digits is 64512, while the sum is 40.
The square root of 68627812 is about 8284.1904854971. The cubic root of 68627812 is about 409.4177974952.
The spelling of 68627812 in words is "sixty-eight million, six hundred twenty-seven thousand, eight hundred twelve".
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