Base | Representation |
---|---|
bin | 1000001011001… |
… | …11110000011111 |
3 | 11210001100102001 |
4 | 10011213300133 |
5 | 120024114211 |
6 | 10445543131 |
7 | 1461640531 |
oct | 405476037 |
9 | 153040361 |
10 | 68582431 |
11 | 35792aa5 |
12 | 1ab74aa7 |
13 | 11293528 |
14 | 9173851 |
15 | 604aac1 |
hex | 4167c1f |
68582431 has 2 divisors, whose sum is σ = 68582432. Its totient is φ = 68582430.
The previous prime is 68582411. The next prime is 68582443. The reversal of 68582431 is 13428586.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68582431 - 211 = 68580383 is a prime.
It is a super-2 number, since 2×685824312 = 9407099683739522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68582411) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34291215 + 34291216.
It is an arithmetic number, because the mean of its divisors is an integer number (34291216).
Almost surely, 268582431 is an apocalyptic number.
68582431 is a deficient number, since it is larger than the sum of its proper divisors (1).
68582431 is an equidigital number, since it uses as much as digits as its factorization.
68582431 is an evil number, because the sum of its binary digits is even.
The product of its digits is 46080, while the sum is 37.
The square root of 68582431 is about 8281.4510202017. The cubic root of 68582431 is about 409.3275333812.
The spelling of 68582431 in words is "sixty-eight million, five hundred eighty-two thousand, four hundred thirty-one".
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