Base | Representation |
---|---|
bin | 1000001101101… |
… | …11111110101001 |
3 | 11210200001010220 |
4 | 10012313332221 |
5 | 120120123032 |
6 | 10501000253 |
7 | 1464506520 |
oct | 406677651 |
9 | 153601126 |
10 | 68911017 |
11 | 3599795a |
12 | 1b0b3089 |
13 | 11379c66 |
14 | 921b4b7 |
15 | 60b312c |
hex | 41b7fa9 |
68911017 has 16 divisors (see below), whose sum is σ = 106030080. Its totient is φ = 38994192.
The previous prime is 68911001. The next prime is 68911033. The reversal of 68911017 is 71011986.
It is an interprime number because it is at equal distance from previous prime (68911001) and next prime (68911033).
It is not a de Polignac number, because 68911017 - 24 = 68911001 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68911067) 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, 13767 + ... + 18092.
It is an arithmetic number, because the mean of its divisors is an integer number (6626880).
Almost surely, 268911017 is an apocalyptic number.
It is an amenable number.
68911017 is a deficient number, since it is larger than the sum of its proper divisors (37119063).
68911017 is a wasteful number, since it uses less digits than its factorization.
68911017 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31972.
The product of its (nonzero) digits is 3024, while the sum is 33.
The square root of 68911017 is about 8301.2659877876. The cubic root of 68911017 is about 409.9802032876.
The spelling of 68911017 in words is "sixty-eight million, nine hundred eleven thousand, seventeen".
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