Base | Representation |
---|---|
bin | 1000001101100… |
… | …10000111110010 |
3 | 11210121211020100 |
4 | 10012302013302 |
5 | 120113341101 |
6 | 10500253230 |
7 | 1464346545 |
oct | 406620762 |
9 | 153554210 |
10 | 68887026 |
11 | 3598092a |
12 | 1b0a1216 |
13 | 1136c070 |
14 | 921285c |
15 | 60aae86 |
hex | 41b21f2 |
68887026 has 48 divisors (see below), whose sum is σ = 170201304. Its totient is φ = 19948032.
The previous prime is 68887003. The next prime is 68887057. The reversal of 68887026 is 62078886.
It can be written as a sum of positive squares in 4 ways, for example, as 64786401 + 4100625 = 8049^2 + 2025^2 .
It is a super-2 number, since 2×688870262 = 9490844702249352, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4681 + ... + 12636.
Almost surely, 268887026 is an apocalyptic number.
68887026 is an abundant number, since it is smaller than the sum of its proper divisors (101314278).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68887026 is a wasteful number, since it uses less digits than its factorization.
68887026 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17355 (or 17352 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The square root of 68887026 is about 8299.8208414399. The cubic root of 68887026 is about 409.9326202976.
The spelling of 68887026 in words is "sixty-eight million, eight hundred eighty-seven thousand, twenty-six".
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