Base | Representation |
---|---|
bin | 1000001001110… |
… | …01010001110011 |
3 | 11202200200020221 |
4 | 10010321101303 |
5 | 120002021201 |
6 | 10441513511 |
7 | 1460215510 |
oct | 404712163 |
9 | 152620227 |
10 | 68392051 |
11 | 35672a62 |
12 | 1aaa2897 |
13 | 11227990 |
14 | 9124307 |
15 | 600e4a1 |
hex | 4139473 |
68392051 has 16 divisors (see below), whose sum is σ = 84369600. Its totient is φ = 53987328.
The previous prime is 68392019. The next prime is 68392061. The reversal of 68392051 is 15029386.
It is a cyclic number.
It is not a de Polignac number, because 68392051 - 25 = 68392019 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68391998 and 68392016.
It is not an unprimeable number, because it can be changed into a prime (68392061) 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, 73155 + ... + 74083.
It is an arithmetic number, because the mean of its divisors is an integer number (5273100).
Almost surely, 268392051 is an apocalyptic number.
68392051 is a deficient number, since it is larger than the sum of its proper divisors (15977549).
68392051 is a wasteful number, since it uses less digits than its factorization.
68392051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1758.
The product of its (nonzero) digits is 12960, while the sum is 34.
The square root of 68392051 is about 8269.9486697319. The cubic root of 68392051 is about 408.9484275693.
The spelling of 68392051 in words is "sixty-eight million, three hundred ninety-two thousand, fifty-one".
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