Base | Representation |
---|---|
bin | 1000001101100… |
… | …00001110000110 |
3 | 11210121102112220 |
4 | 10012300032012 |
5 | 120113113423 |
6 | 10500153210 |
7 | 1464315051 |
oct | 406601606 |
9 | 153542486 |
10 | 68879238 |
11 | 35975a9a |
12 | 1b098806 |
13 | 1136865c |
14 | 920da98 |
15 | 60a89e3 |
hex | 41b0386 |
68879238 has 8 divisors (see below), whose sum is σ = 137758488. Its totient is φ = 22959744.
The previous prime is 68879233. The next prime is 68879267. The reversal of 68879238 is 83297886.
It is a sphenic number, since it is the product of 3 distinct primes.
68879238 is an admirable number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68879233) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5739931 + ... + 5739942.
It is an arithmetic number, because the mean of its divisors is an integer number (17219811).
Almost surely, 268879238 is an apocalyptic number.
68879238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68879238 is a wasteful number, since it uses less digits than its factorization.
68879238 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11479878.
The product of its digits is 1161216, while the sum is 51.
The square root of 68879238 is about 8299.3516614251. The cubic root of 68879238 is about 409.9171714497.
The spelling of 68879238 in words is "sixty-eight million, eight hundred seventy-nine thousand, two hundred thirty-eight".
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