Base | Representation |
---|---|
bin | 1000001000111… |
… | …10000001100011 |
3 | 11202111000010102 |
4 | 10010132001203 |
5 | 114434433134 |
6 | 10435253015 |
7 | 1456242164 |
oct | 404360143 |
9 | 152430112 |
10 | 68280419 |
11 | 355a70a9 |
12 | 1aa4a16b |
13 | 111b8c1c |
14 | 90d576b |
15 | 5edb37e |
hex | 411e063 |
68280419 has 2 divisors, whose sum is σ = 68280420. Its totient is φ = 68280418.
The previous prime is 68280391. The next prime is 68280439. The reversal of 68280419 is 91408286.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 68280419 - 224 = 51503203 is a prime.
It is a super-2 number, since 2×682804192 = 9324431237631122, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (68280439) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34140209 + 34140210.
It is an arithmetic number, because the mean of its divisors is an integer number (34140210).
Almost surely, 268280419 is an apocalyptic number.
68280419 is a deficient number, since it is larger than the sum of its proper divisors (1).
68280419 is an equidigital number, since it uses as much as digits as its factorization.
68280419 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27648, while the sum is 38.
The square root of 68280419 is about 8263.1966574686. The cubic root of 68280419 is about 408.7258062223.
The spelling of 68280419 in words is "sixty-eight million, two hundred eighty thousand, four hundred nineteen".
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