Base | Representation |
---|---|
bin | 1000001100100… |
… | …10110101010110 |
3 | 11210101022102211 |
4 | 10012102311112 |
5 | 120100240440 |
6 | 10453424034 |
7 | 1463304115 |
oct | 406226526 |
9 | 153338384 |
10 | 68758870 |
11 | 358a3614 |
12 | 1b03b01a |
13 | 1132592b |
14 | 91bbc7c |
15 | 6082eea |
hex | 4192d56 |
68758870 has 16 divisors (see below), whose sum is σ = 123914448. Its totient is φ = 27470560.
The previous prime is 68758867. The next prime is 68758871. The reversal of 68758870 is 7885786.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68758871) 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, 5757 + ... + 13063.
It is an arithmetic number, because the mean of its divisors is an integer number (7744653).
Almost surely, 268758870 is an apocalyptic number.
68758870 is a deficient number, since it is larger than the sum of its proper divisors (55155578).
68758870 is a wasteful number, since it uses less digits than its factorization.
68758870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8255.
The product of its (nonzero) digits is 752640, while the sum is 49.
The square root of 68758870 is about 8292.0968397625. The cubic root of 68758870 is about 409.6782524328.
The spelling of 68758870 in words is "sixty-eight million, seven hundred fifty-eight thousand, eight hundred seventy".
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