Base | Representation |
---|---|
bin | 1000001011101… |
… | …01001100011100 |
3 | 11210011010220110 |
4 | 10011311030130 |
5 | 120032344333 |
6 | 10451050020 |
7 | 1462260144 |
oct | 405651434 |
9 | 153133813 |
10 | 68637468 |
11 | 35820389 |
12 | 1aba0910 |
13 | 112b25b3 |
14 | 9189924 |
15 | 605c063 |
hex | 417531c |
68637468 has 24 divisors (see below), whose sum is σ = 160342672. Its totient is φ = 22852224.
The previous prime is 68637467. The next prime is 68637493. The reversal of 68637468 is 86473686.
It is a happy number.
It is a super-2 number, since 2×686374682 = 9422204026902048, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68637467) 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, 9096 + ... + 14832.
Almost surely, 268637468 is an apocalyptic number.
It is an amenable number.
68637468 is an abundant number, since it is smaller than the sum of its proper divisors (91705204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68637468 is a wasteful number, since it uses less digits than its factorization.
68637468 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6741 (or 6739 counting only the distinct ones).
The product of its digits is 1161216, while the sum is 48.
The square root of 68637468 is about 8284.7732618340. The cubic root of 68637468 is about 409.4369984224.
The spelling of 68637468 in words is "sixty-eight million, six hundred thirty-seven thousand, four hundred sixty-eight".
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