Base | Representation |
---|---|
bin | 101111101011… |
… | …1100001010111 |
3 | 1202001010120210 |
4 | 1133113201113 |
5 | 22400000043 |
6 | 2251500503 |
7 | 422332236 |
oct | 137274127 |
9 | 52033523 |
10 | 25000023 |
11 | 13125984 |
12 | 8457733 |
13 | 5244219 |
14 | 346ab1d |
15 | 22dc633 |
hex | 17d7857 |
25000023 has 8 divisors (see below), whose sum is σ = 33803136. Its totient is φ = 16431800.
The previous prime is 25000009. The next prime is 25000033. The reversal of 25000023 is 32000052.
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 25000023 - 26 = 24999959 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 24999972 and 25000008.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25000033) 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, 58473 + ... + 58898.
It is an arithmetic number, because the mean of its divisors is an integer number (4225392).
Almost surely, 225000023 is an apocalyptic number.
25000023 is a deficient number, since it is larger than the sum of its proper divisors (8803113).
25000023 is a wasteful number, since it uses less digits than its factorization.
25000023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117445.
The product of its (nonzero) digits is 60, while the sum is 12.
The square root of 25000023 is about 5000.0022999995. The cubic root of 25000023 is about 292.4018634911.
Adding to 25000023 its reverse (32000052), we get a palindrome (57000075).
The spelling of 25000023 in words is "twenty-five million, twenty-three", and thus it is an aban number and an uban number.
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