Base | Representation |
---|---|
bin | 110000010000… |
… | …0000100110001 |
3 | 1202121020020101 |
4 | 1200200010301 |
5 | 22434002301 |
6 | 2302112401 |
7 | 425010526 |
oct | 140400461 |
9 | 52536211 |
10 | 25297201 |
11 | 13309186 |
12 | 857b701 |
13 | 5319577 |
14 | 350714d |
15 | 234a701 |
hex | 1820131 |
25297201 has 8 divisors (see below), whose sum is σ = 26243360. Its totient is φ = 24367392.
The previous prime is 25297199. The next prime is 25297213. The reversal of 25297201 is 10279252.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 25297201 - 21 = 25297199 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 25297201.
It is not an unprimeable number, because it can be changed into a prime (25297231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891 + ... + 7168.
It is an arithmetic number, because the mean of its divisors is an integer number (3280420).
Almost surely, 225297201 is an apocalyptic number.
It is an amenable number.
25297201 is a deficient number, since it is larger than the sum of its proper divisors (946159).
25297201 is an equidigital number, since it uses as much as digits as its factorization.
25297201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8175.
The product of its (nonzero) digits is 2520, while the sum is 28.
The square root of 25297201 is about 5029.6322927228. The cubic root of 25297201 is about 293.5559070326. Note that the first 3 decimals are identical.
It can be divided in two parts, 2529 and 7201, that added together give a triangular number (9730 = T139).
The spelling of 25297201 in words is "twenty-five million, two hundred ninety-seven thousand, two hundred one".
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