Base | Representation |
---|---|
bin | 1000001110011… |
… | …00011000101101 |
3 | 11210211021210202 |
4 | 10013030120231 |
5 | 120130311410 |
6 | 10502443245 |
7 | 1465305311 |
oct | 407143055 |
9 | 153737722 |
10 | 68994605 |
11 | 35a44739 |
12 | 1b133525 |
13 | 113a9014 |
14 | 923db41 |
15 | 60ccca5 |
hex | 41cc62d |
68994605 has 32 divisors (see below), whose sum is σ = 90512640. Its totient is φ = 50319360.
The previous prime is 68994593. The next prime is 68994613. The reversal of 68994605 is 50649986.
It is not a de Polignac number, because 68994605 - 220 = 67946029 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68994605.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357389 + ... + 357581.
It is an arithmetic number, because the mean of its divisors is an integer number (2828520).
Almost surely, 268994605 is an apocalyptic number.
It is an amenable number.
68994605 is a deficient number, since it is larger than the sum of its proper divisors (21518035).
68994605 is a wasteful number, since it uses less digits than its factorization.
68994605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 341.
The product of its (nonzero) digits is 466560, while the sum is 47.
The square root of 68994605 is about 8306.2991157314. The cubic root of 68994605 is about 410.1459028616.
The spelling of 68994605 in words is "sixty-eight million, nine hundred ninety-four thousand, six hundred five".
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