Base | Representation |
---|---|
bin | 1000001110011… |
… | …00010000010001 |
3 | 11210211021001202 |
4 | 10013030100101 |
5 | 120130302230 |
6 | 10502440545 |
7 | 1465303610 |
oct | 407142021 |
9 | 153737052 |
10 | 68994065 |
11 | 35a44298 |
12 | 1b133155 |
13 | 113a89ba |
14 | 923d877 |
15 | 60cca45 |
hex | 41cc411 |
68994065 has 16 divisors (see below), whose sum is σ = 97674240. Its totient is φ = 45783360.
The previous prime is 68994061. The next prime is 68994067. The reversal of 68994065 is 56049986.
It is not a de Polignac number, because 68994065 - 22 = 68994061 is a prime.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (68994061) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30710 + ... + 32879.
It is an arithmetic number, because the mean of its divisors is an integer number (6104640).
Almost surely, 268994065 is an apocalyptic number.
It is an amenable number.
68994065 is a deficient number, since it is larger than the sum of its proper divisors (28680175).
68994065 is a wasteful number, since it uses less digits than its factorization.
68994065 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63632.
The product of its (nonzero) digits is 466560, while the sum is 47.
The square root of 68994065 is about 8306.2666102167. The cubic root of 68994065 is about 410.1448328293.
The spelling of 68994065 in words is "sixty-eight million, nine hundred ninety-four thousand, sixty-five".
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