Base | Representation |
---|---|
bin | 110010101111… |
… | …000101010111 |
3 | 221000201020122 |
4 | 302233011113 |
5 | 11401100210 |
6 | 1153022155 |
7 | 221022446 |
oct | 62570527 |
9 | 27021218 |
10 | 13300055 |
11 | 756458a |
12 | 455495b |
13 | 29a8972 |
14 | 1aa2d5d |
15 | 127ab55 |
hex | caf157 |
13300055 has 4 divisors (see below), whose sum is σ = 15960072. Its totient is φ = 10640040.
The previous prime is 13300051. The next prime is 13300087. The reversal of 13300055 is 55000331.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55000331 = 59 ⋅932209.
It is not a de Polignac number, because 13300055 - 22 = 13300051 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13300051) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330001 + ... + 1330010.
It is an arithmetic number, because the mean of its divisors is an integer number (3990018).
Almost surely, 213300055 is an apocalyptic number.
13300055 is a deficient number, since it is larger than the sum of its proper divisors (2660017).
13300055 is an equidigital number, since it uses as much as digits as its factorization.
13300055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2660016.
The product of its (nonzero) digits is 225, while the sum is 17.
The square root of 13300055 is about 3646.9240463711. The cubic root of 13300055 is about 236.9287768083.
Adding to 13300055 its reverse (55000331), we get a palindrome (68300386).
The spelling of 13300055 in words is "thirteen million, three hundred thousand, fifty-five".
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