Base | Representation |
---|---|
bin | 110001011110… |
… | …1011110111101 |
3 | 1210210222122221 |
4 | 1202331132331 |
5 | 23120120244 |
6 | 2324005341 |
7 | 433334335 |
oct | 142753675 |
9 | 53728587 |
10 | 25941949 |
11 | 13709630 |
12 | 8830851 |
13 | 54b3b87 |
14 | 36340c5 |
15 | 2426784 |
hex | 18bd7bd |
25941949 has 8 divisors (see below), whose sum is σ = 29965248. Its totient is φ = 22196160.
The previous prime is 25941919. The next prime is 25941959. The reversal of 25941949 is 94914952.
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 25941949 - 29 = 25941437 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25941919) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69177 + ... + 69550.
It is an arithmetic number, because the mean of its divisors is an integer number (3745656).
Almost surely, 225941949 is an apocalyptic number.
It is an amenable number.
25941949 is a deficient number, since it is larger than the sum of its proper divisors (4023299).
25941949 is a wasteful number, since it uses less digits than its factorization.
25941949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 138755.
The product of its digits is 116640, while the sum is 43.
The square root of 25941949 is about 5093.3239637785. The cubic root of 25941949 is about 296.0289606738.
It can be divided in two parts, 259 and 41949, that multiplied together give a triangular number (10864791 = T4661).
The spelling of 25941949 in words is "twenty-five million, nine hundred forty-one thousand, nine hundred forty-nine".
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