Base | Representation |
---|---|
bin | 110010100010… |
… | …110111101001 |
3 | 220221011121200 |
4 | 302202313221 |
5 | 11343000100 |
6 | 1151554413 |
7 | 220423545 |
oct | 62426751 |
9 | 26834550 |
10 | 13250025 |
11 | 752aa38 |
12 | 452ba09 |
13 | 298bc69 |
14 | 1a8ca25 |
15 | 126ae00 |
hex | ca2de9 |
13250025 has 18 divisors (see below), whose sum is σ = 23732670. Its totient is φ = 7066560.
The previous prime is 13250009. The next prime is 13250101. The reversal of 13250025 is 52005231.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 138384 + 13111641 = 372^2 + 3621^2 .
It is not a de Polignac number, because 13250025 - 24 = 13250009 is a prime.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29220 + ... + 29669.
Almost surely, 213250025 is an apocalyptic number.
13250025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13250025 is a deficient number, since it is larger than the sum of its proper divisors (10482645).
13250025 is a wasteful number, since it uses less digits than its factorization.
13250025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 58905 (or 58897 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 18.
The square root of 13250025 is about 3640.0583786527. The cubic root of 13250025 is about 236.6313233827.
Adding to 13250025 its reverse (52005231), we get a palindrome (65255256).
The spelling of 13250025 in words is "thirteen million, two hundred fifty thousand, twenty-five".
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