Base | Representation |
---|---|
bin | 1000001000101… |
… | …11110011110101 |
3 | 11202102201012200 |
4 | 10010113303311 |
5 | 114433124330 |
6 | 10434535113 |
7 | 1456105032 |
oct | 404276365 |
9 | 152381180 |
10 | 68254965 |
11 | 35589a69 |
12 | 1aa37499 |
13 | 111aa46c |
14 | 90ca389 |
15 | 5ed3a60 |
hex | 4117cf5 |
68254965 has 24 divisors (see below), whose sum is σ = 119074488. Its totient is φ = 36167040.
The previous prime is 68254957. The next prime is 68254981. The reversal of 68254965 is 56945286.
It can be written as a sum of positive squares in 4 ways, for example, as 1962801 + 66292164 = 1401^2 + 8142^2 .
It is not a de Polignac number, because 68254965 - 23 = 68254957 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 68254965.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2235 + ... + 11895.
It is an arithmetic number, because the mean of its divisors is an integer number (4961437).
Almost surely, 268254965 is an apocalyptic number.
It is an amenable number.
68254965 is a deficient number, since it is larger than the sum of its proper divisors (50819523).
68254965 is a wasteful number, since it uses less digits than its factorization.
68254965 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9829 (or 9826 counting only the distinct ones).
The product of its digits is 518400, while the sum is 45.
The square root of 68254965 is about 8261.6563109343. The cubic root of 68254965 is about 408.6750107923.
The spelling of 68254965 in words is "sixty-eight million, two hundred fifty-four thousand, nine hundred sixty-five".
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