Base | Representation |
---|---|
bin | 111001100100… |
… | …110111101001 |
3 | 1001101211000100 |
4 | 321210313221 |
5 | 12330440400 |
6 | 1255300013 |
7 | 242201400 |
oct | 71446751 |
9 | 31354010 |
10 | 15093225 |
11 | 8579844 |
12 | 507a609 |
13 | 3185c04 |
14 | 200c637 |
15 | 14d2100 |
hex | e64de9 |
15093225 has 81 divisors (see below), whose sum is σ = 32320197. Its totient is φ = 6713280.
The previous prime is 15093223. The next prime is 15093233. The reversal of 15093225 is 52239051.
The square root of 15093225 is 3885.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 4 ways, for example, as 1432809 + 13660416 = 1197^2 + 3696^2 .
It is not a de Polignac number, because 15093225 - 21 = 15093223 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (15093223) by changing a digit.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 407907 + ... + 407943.
Almost surely, 215093225 is an apocalyptic number.
15093225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
15093225 is the 3885-th square number.
15093225 is the 1943-rd centered octagonal number.
It is an amenable number.
15093225 is an abundant number, since it is smaller than the sum of its proper divisors (17226972).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15093225 is a wasteful number, since it uses less digits than its factorization.
15093225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104 (or 52 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 27.
The cubic root of 15093225 is about 247.1310695577.
The spelling of 15093225 in words is "fifteen million, ninety-three thousand, two hundred twenty-five".
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