Base | Representation |
---|---|
bin | 1000000111000… |
… | …11101110000101 |
3 | 11202000212112110 |
4 | 10003203232011 |
5 | 114404312410 |
6 | 10430211233 |
7 | 1454226012 |
oct | 403435605 |
9 | 152025473 |
10 | 68041605 |
11 | 35453735 |
12 | 1a953b19 |
13 | 11134308 |
14 | 9072709 |
15 | 5e90720 |
hex | 40e3b85 |
68041605 has 16 divisors (see below), whose sum is σ = 108984960. Its totient is φ = 36249408.
The previous prime is 68041601. The next prime is 68041607. The reversal of 68041605 is 50614086.
68041605 is nontrivially palindromic in base 14.
It is not a de Polignac number, because 68041605 - 22 = 68041601 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68041601) 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, 16491 + ... + 20199.
It is an arithmetic number, because the mean of its divisors is an integer number (6811560).
Almost surely, 268041605 is an apocalyptic number.
It is an amenable number.
68041605 is a deficient number, since it is larger than the sum of its proper divisors (40943355).
68041605 is a wasteful number, since it uses less digits than its factorization.
68041605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4940.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 68041605 is about 8248.7335391562. The cubic root of 68041605 is about 408.2487369754.
The spelling of 68041605 in words is "sixty-eight million, forty-one thousand, six hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •