Base | Representation |
---|---|
bin | 110010010100… |
… | …0011100010001 |
3 | 1211122020121212 |
4 | 1210220130101 |
5 | 23223130144 |
6 | 2341225505 |
7 | 440140523 |
oct | 144503421 |
9 | 54566555 |
10 | 26380049 |
11 | 139887a3 |
12 | 8a02295 |
13 | 56083c7 |
14 | 3709a13 |
15 | 24b149e |
hex | 1928711 |
26380049 has 2 divisors, whose sum is σ = 26380050. Its totient is φ = 26380048.
The previous prime is 26380031. The next prime is 26380063. The reversal of 26380049 is 94008362.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 26214400 + 165649 = 5120^2 + 407^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-26380049 is a prime.
It is a Chen prime.
It is equal to p1646735 and since 26380049 and 1646735 have the same sum of digits, it is a Honaker prime.
It is a junction number, because it is equal to n+sod(n) for n = 26379997 and 26380024.
It is not a weakly prime, because it can be changed into another prime (26380009) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13190024 + 13190025.
It is an arithmetic number, because the mean of its divisors is an integer number (13190025).
Almost surely, 226380049 is an apocalyptic number.
It is an amenable number.
26380049 is a deficient number, since it is larger than the sum of its proper divisors (1).
26380049 is an equidigital number, since it uses as much as digits as its factorization.
26380049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 10368, while the sum is 32.
The square root of 26380049 is about 5136.1511854695. The cubic root of 26380049 is about 297.6860837091.
The spelling of 26380049 in words is "twenty-six million, three hundred eighty thousand, forty-nine".
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