Base | Representation |
---|---|
bin | 1000001011101… |
… | …11110001101001 |
3 | 11210011200102001 |
4 | 10011313301221 |
5 | 120033214131 |
6 | 10451211001 |
7 | 1462333030 |
oct | 405676151 |
9 | 153150361 |
10 | 68648041 |
11 | 35828320 |
12 | 1aba6a61 |
13 | 112b7357 |
14 | 918d717 |
15 | 6060261 |
hex | 4177c69 |
68648041 has 16 divisors (see below), whose sum is σ = 85944960. Its totient is φ = 53268480.
The previous prime is 68648033. The next prime is 68648053. The reversal of 68648041 is 14084686.
It is a 4-Lehmer number, since φ(68648041) divides (68648041-1)4.
It is a cyclic number.
It is not a de Polignac number, because 68648041 - 23 = 68648033 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68648071) 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, 18055 + ... + 21523.
It is an arithmetic number, because the mean of its divisors is an integer number (5371560).
Almost surely, 268648041 is an apocalyptic number.
It is an amenable number.
68648041 is a deficient number, since it is larger than the sum of its proper divisors (17296919).
68648041 is a wasteful number, since it uses less digits than its factorization.
68648041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3744.
The product of its (nonzero) digits is 36864, while the sum is 37.
The square root of 68648041 is about 8285.4113355946. The cubic root of 68648041 is about 409.4580207359.
The spelling of 68648041 in words is "sixty-eight million, six hundred forty-eight thousand, forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •