Base | Representation |
---|---|
bin | 1000001000110… |
… | …11010001100001 |
3 | 11202110102200011 |
4 | 10010123101201 |
5 | 114434103103 |
6 | 10435124521 |
7 | 1456164301 |
oct | 404332141 |
9 | 152412604 |
10 | 68269153 |
11 | 35599697 |
12 | 1aa43741 |
13 | 111b3a64 |
14 | 90d1601 |
15 | 5ed7d6d |
hex | 411b461 |
68269153 has 2 divisors, whose sum is σ = 68269154. Its totient is φ = 68269152.
The previous prime is 68269151. The next prime is 68269163. The reversal of 68269153 is 35196286.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 59166864 + 9102289 = 7692^2 + 3017^2 .
It is a cyclic number.
It is not a de Polignac number, because 68269153 - 21 = 68269151 is a prime.
Together with 68269151, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (68269151) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34134576 + 34134577.
It is an arithmetic number, because the mean of its divisors is an integer number (34134577).
Almost surely, 268269153 is an apocalyptic number.
68269153 is the 4417-th centered heptagonal number.
It is an amenable number.
68269153 is a deficient number, since it is larger than the sum of its proper divisors (1).
68269153 is an equidigital number, since it uses as much as digits as its factorization.
68269153 is an evil number, because the sum of its binary digits is even.
The product of its digits is 77760, while the sum is 40.
The square root of 68269153 is about 8262.5149319078. The cubic root of 68269153 is about 408.7033256035.
The spelling of 68269153 in words is "sixty-eight million, two hundred sixty-nine thousand, one hundred fifty-three".
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