Base | Representation |
---|---|
bin | 1000001010100… |
… | …01110001100100 |
3 | 11202212202220010 |
4 | 10011101301210 |
5 | 120013224023 |
6 | 10444010220 |
7 | 1461114156 |
oct | 405216144 |
9 | 152782803 |
10 | 68492388 |
11 | 35731388 |
12 | 1ab30970 |
13 | 11261553 |
14 | 914cad6 |
15 | 602e093 |
hex | 4151c64 |
68492388 has 24 divisors (see below), whose sum is σ = 169216992. Its totient is φ = 21487744.
The previous prime is 68492387. The next prime is 68492393. The reversal of 68492388 is 88329486.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (68492387) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167670 + ... + 168077.
It is an arithmetic number, because the mean of its divisors is an integer number (7050708).
Almost surely, 268492388 is an apocalyptic number.
68492388 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
68492388 is an abundant number, since it is smaller than the sum of its proper divisors (100724604).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68492388 is a wasteful number, since it uses less digits than its factorization.
68492388 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 335771 (or 335769 counting only the distinct ones).
The product of its digits is 663552, while the sum is 48.
The square root of 68492388 is about 8276.0128081100. The cubic root of 68492388 is about 409.1483173127.
The spelling of 68492388 in words is "sixty-eight million, four hundred ninety-two thousand, three hundred eighty-eight".
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