Base | Representation |
---|---|
bin | 110010011010… |
… | …000101101001 |
3 | 220212100021112 |
4 | 302122011221 |
5 | 11340322212 |
6 | 1151120105 |
7 | 220213643 |
oct | 62320551 |
9 | 26770245 |
10 | 13214057 |
11 | 7505a0a |
12 | 4513035 |
13 | 297878c |
14 | 1a7d893 |
15 | 1260422 |
hex | c9a169 |
13214057 has 2 divisors, whose sum is σ = 13214058. Its totient is φ = 13214056.
The previous prime is 13214041. The next prime is 13214081. The reversal of 13214057 is 75041231.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9916201 + 3297856 = 3149^2 + 1816^2 .
It is a cyclic number.
It is not a de Polignac number, because 13214057 - 24 = 13214041 is a prime.
It is a super-2 number, since 2×132140572 = 349222604798498, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13214017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607028 + 6607029.
It is an arithmetic number, because the mean of its divisors is an integer number (6607029).
Almost surely, 213214057 is an apocalyptic number.
It is an amenable number.
13214057 is a deficient number, since it is larger than the sum of its proper divisors (1).
13214057 is an equidigital number, since it uses as much as digits as its factorization.
13214057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 13214057 is about 3635.1144411146. The cubic root of 13214057 is about 236.4170126317.
Adding to 13214057 its reverse (75041231), we get a palindrome (88255288).
The spelling of 13214057 in words is "thirteen million, two hundred fourteen thousand, fifty-seven".
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