Base | Representation |
---|---|
bin | 1000000111110… |
… | …00101110011010 |
3 | 11202012020120000 |
4 | 10003320232122 |
5 | 114420041032 |
6 | 10432113430 |
7 | 1455034602 |
oct | 403705632 |
9 | 152166500 |
10 | 68127642 |
11 | 35502340 |
12 | 1a995876 |
13 | 1116451b |
14 | 9095c02 |
15 | 5eaae7c |
hex | 40f8b9a |
68127642 has 40 divisors (see below), whose sum is σ = 166538592. Its totient is φ = 20644200.
The previous prime is 68127637. The next prime is 68127707. The reversal of 68127642 is 24672186.
68127642 is a `hidden beast` number, since 6 + 8 + 1 + 2 + 7 + 642 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 68127597 and 68127606.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17334 + ... + 20897.
Almost surely, 268127642 is an apocalyptic number.
68127642 is an abundant number, since it is smaller than the sum of its proper divisors (98410950).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68127642 is a wasteful number, since it uses less digits than its factorization.
68127642 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38256 (or 38247 counting only the distinct ones).
The product of its digits is 32256, while the sum is 36.
The square root of 68127642 is about 8253.9470558031. The cubic root of 68127642 is about 408.4207381222.
The spelling of 68127642 in words is "sixty-eight million, one hundred twenty-seven thousand, six hundred forty-two".
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