Base | Representation |
---|---|
bin | 1000001000110… |
… | …11011001001001 |
3 | 11202110110100020 |
4 | 10010123121021 |
5 | 114434112031 |
6 | 10435131053 |
7 | 1456165566 |
oct | 404333111 |
9 | 152413306 |
10 | 68269641 |
11 | 35599aa0 |
12 | 1aa43a89 |
13 | 111b404b |
14 | 90d186d |
15 | 5ed8096 |
hex | 411b649 |
68269641 has 16 divisors (see below), whose sum is σ = 104528640. Its totient is φ = 39197520.
The previous prime is 68269639. The next prime is 68269651. The reversal of 68269641 is 14696286.
It is not a de Polignac number, because 68269641 - 21 = 68269639 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 68269593 and 68269602.
It is not an unprimeable number, because it can be changed into a prime (68269631) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53815 + ... + 55068.
It is an arithmetic number, because the mean of its divisors is an integer number (6533040).
Almost surely, 268269641 is an apocalyptic number.
It is an amenable number.
68269641 is a deficient number, since it is larger than the sum of its proper divisors (36258999).
68269641 is a wasteful number, since it uses less digits than its factorization.
68269641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108916.
The product of its digits is 124416, while the sum is 42.
The square root of 68269641 is about 8262.5444628153. The cubic root of 68269641 is about 408.7042994291.
The spelling of 68269641 in words is "sixty-eight million, two hundred sixty-nine thousand, six hundred forty-one".
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