Base | Representation |
---|---|
bin | 111001010101… |
… | …011111010001 |
3 | 1001021121121000 |
4 | 321111133101 |
5 | 12321431400 |
6 | 1254052213 |
7 | 241516620 |
oct | 71253721 |
9 | 31247530 |
10 | 15030225 |
11 | 8536481 |
12 | 504a069 |
13 | 3163332 |
14 | 1dd36b7 |
15 | 14bd600 |
hex | e557d1 |
15030225 has 48 divisors (see below), whose sum is σ = 31565440. Its totient is φ = 6868800.
The previous prime is 15030199. The next prime is 15030233. The reversal of 15030225 is 52203051.
It is a happy number.
It is not a de Polignac number, because 15030225 - 26 = 15030161 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 15030198 and 15030207.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3135 + ... + 6315.
Almost surely, 215030225 is an apocalyptic number.
15030225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
15030225 is an abundant number, since it is smaller than the sum of its proper divisors (16535215).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15030225 is a wasteful number, since it uses less digits than its factorization.
15030225 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3207 (or 3196 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 15030225 is about 3876.8834132586. The cubic root of 15030225 is about 246.7867435420.
Adding to 15030225 its reverse (52203051), we get a palindrome (67233276).
The spelling of 15030225 in words is "fifteen million, thirty thousand, two hundred twenty-five".
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