Base | Representation |
---|---|
bin | 110001110011… |
… | …001111100101 |
3 | 220120021000122 |
4 | 301303033211 |
5 | 11320224244 |
6 | 1143451325 |
7 | 215652035 |
oct | 61631745 |
9 | 26507018 |
10 | 13054949 |
11 | 7407416 |
12 | 4456b45 |
13 | 292122b |
14 | 1a3b8c5 |
15 | 122d1ee |
hex | c733e5 |
13054949 has 2 divisors, whose sum is σ = 13054950. Its totient is φ = 13054948.
The previous prime is 13054931. The next prime is 13054973. The reversal of 13054949 is 94945031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12040900 + 1014049 = 3470^2 + 1007^2 .
It is an emirp because it is prime and its reverse (94945031) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13054949 is a prime.
It is a super-4 number, since 4×130549494 (a number of 30 digits) contains 4444 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (13050949) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6527474 + 6527475.
It is an arithmetic number, because the mean of its divisors is an integer number (6527475).
Almost surely, 213054949 is an apocalyptic number.
It is an amenable number.
13054949 is a deficient number, since it is larger than the sum of its proper divisors (1).
13054949 is an equidigital number, since it uses as much as digits as its factorization.
13054949 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 19440, while the sum is 35.
The square root of 13054949 is about 3613.1632955071. The cubic root of 13054949 is about 235.4642940924.
The spelling of 13054949 in words is "thirteen million, fifty-four thousand, nine hundred forty-nine".
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