Base | Representation |
---|---|
bin | 110000000111… |
… | …1101011000111 |
3 | 1202110211002022 |
4 | 1200033223013 |
5 | 22424330043 |
6 | 2300433355 |
7 | 424310630 |
oct | 140175307 |
9 | 52424068 |
10 | 25230023 |
11 | 13272765 |
12 | 854885b |
13 | 52c4b10 |
14 | 34ca887 |
15 | 2335868 |
hex | 180fac7 |
25230023 has 32 divisors (see below), whose sum is σ = 33675264. Its totient is φ = 18335232.
The previous prime is 25230017. The next prime is 25230059. The reversal of 25230023 is 32003252.
It is a cyclic number.
It is not a de Polignac number, because 25230023 - 212 = 25225927 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a junction number, because it is equal to n+sod(n) for n = 25229983 and 25230010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25230083) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 72536 + ... + 72882.
It is an arithmetic number, because the mean of its divisors is an integer number (1052352).
Almost surely, 225230023 is an apocalyptic number.
25230023 is a deficient number, since it is larger than the sum of its proper divisors (8445241).
25230023 is a wasteful number, since it uses less digits than its factorization.
25230023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 431.
The product of its (nonzero) digits is 360, while the sum is 17.
The square root of 25230023 is about 5022.9496314417. The cubic root of 25230023 is about 293.2958258115.
Adding to 25230023 its reverse (32003252), we get a palindrome (57233275).
It can be divided in two parts, 25 and 230023, that multiplied together give a palindrome (5750575).
The spelling of 25230023 in words is "twenty-five million, two hundred thirty thousand, twenty-three".
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