Base | Representation |
---|---|
bin | 111111010111100111… |
… | …101010010111001111 |
3 | 20111121222001010210221 |
4 | 333113213222113033 |
5 | 2103322223224030 |
6 | 51131424212211 |
7 | 4626100345132 |
oct | 772747522717 |
9 | 214558033727 |
10 | 68042008015 |
11 | 26946a37783 |
12 | 1122b16a067 |
13 | 65548bab07 |
14 | 3416974219 |
15 | 1b83799e7a |
hex | fd79ea5cf |
68042008015 has 8 divisors (see below), whose sum is σ = 81968117040. Its totient is φ = 54221801472.
The previous prime is 68042008009. The next prime is 68042008033. The reversal of 68042008015 is 51080024086.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 68042008015 - 25 = 68042007983 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26474205 + ... + 26476774.
It is an arithmetic number, because the mean of its divisors is an integer number (10246014630).
Almost surely, 268042008015 is an apocalyptic number.
68042008015 is a deficient number, since it is larger than the sum of its proper divisors (13926109025).
68042008015 is a wasteful number, since it uses less digits than its factorization.
68042008015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52951241.
The product of its (nonzero) digits is 15360, while the sum is 34.
The spelling of 68042008015 in words is "sixty-eight billion, forty-two million, eight thousand, fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.092 sec. • engine limits •