Base | Representation |
---|---|
bin | 111001101001… |
… | …101100101101 |
3 | 1001102211010221 |
4 | 321221230231 |
5 | 12332104010 |
6 | 1255531341 |
7 | 242313145 |
oct | 71515455 |
9 | 31384127 |
10 | 15113005 |
11 | 8592696 |
12 | 5089b51 |
13 | 3191c0b |
14 | 2015925 |
15 | 14d7dda |
hex | e69b2d |
15113005 has 4 divisors (see below), whose sum is σ = 18135612. Its totient is φ = 12090400.
The previous prime is 15112997. The next prime is 15113009. The reversal of 15113005 is 50031151.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50031151 = 1549 ⋅32299.
It can be written as a sum of positive squares in 2 ways, for example, as 3189796 + 11923209 = 1786^2 + 3453^2 .
It is not a de Polignac number, because 15113005 - 23 = 15112997 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 15113005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (15113009) 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, 1511296 + ... + 1511305.
It is an arithmetic number, because the mean of its divisors is an integer number (4533903).
Almost surely, 215113005 is an apocalyptic number.
It is an amenable number.
15113005 is a deficient number, since it is larger than the sum of its proper divisors (3022607).
15113005 is an equidigital number, since it uses as much as digits as its factorization.
15113005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3022606.
The product of its (nonzero) digits is 75, while the sum is 16.
The square root of 15113005 is about 3887.5448550467. The cubic root of 15113005 is about 247.2389793146.
Adding to 15113005 its reverse (50031151), we get a palindrome (65144156).
The spelling of 15113005 in words is "fifteen million, one hundred thirteen thousand, five".
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