Base | Representation |
---|---|
bin | 101111101011… |
… | …1110100010001 |
3 | 1202001012020121 |
4 | 1133113310101 |
5 | 22400014413 |
6 | 2251510241 |
7 | 422335615 |
oct | 137276421 |
9 | 52035217 |
10 | 25001233 |
11 | 13126884 |
12 | 8458381 |
13 | 524493a |
14 | 346b345 |
15 | 22dcb8d |
hex | 17d7d11 |
25001233 has 8 divisors (see below), whose sum is σ = 25745000. Its totient is φ = 24261120.
The previous prime is 25001231. The next prime is 25001239. The reversal of 25001233 is 33210052.
It can be written as a sum of positive squares in 4 ways, for example, as 6235009 + 18766224 = 2497^2 + 4332^2 .
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 25001233 - 21 = 25001231 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (25001231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19393 + ... + 20641.
It is an arithmetic number, because the mean of its divisors is an integer number (3218125).
Almost surely, 225001233 is an apocalyptic number.
It is an amenable number.
25001233 is a deficient number, since it is larger than the sum of its proper divisors (743767).
25001233 is a wasteful number, since it uses less digits than its factorization.
25001233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1827.
The product of its (nonzero) digits is 180, while the sum is 16.
The square root of 25001233 is about 5000.1232984797. The cubic root of 25001233 is about 292.4065808274.
Adding to 25001233 its reverse (33210052), we get a palindrome (58211285).
The spelling of 25001233 in words is "twenty-five million, one thousand, two hundred thirty-three".
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