Base | Representation |
---|---|
bin | 101111110000… |
… | …1111111100001 |
3 | 1202010022102022 |
4 | 1133201333201 |
5 | 22402333123 |
6 | 2252431225 |
7 | 422601260 |
oct | 137417741 |
9 | 52108368 |
10 | 25042913 |
11 | 13155125 |
12 | 8478515 |
13 | 525a8bc |
14 | 347c5d7 |
15 | 22ea1c8 |
hex | 17e1fe1 |
25042913 has 8 divisors (see below), whose sum is σ = 28804032. Its totient is φ = 21327696.
The previous prime is 25042891. The next prime is 25042933. The reversal of 25042913 is 31924052.
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 25042913 - 210 = 25041889 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (25042933) 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, 10295 + ... + 12492.
It is an arithmetic number, because the mean of its divisors is an integer number (3600504).
Almost surely, 225042913 is an apocalyptic number.
It is an amenable number.
25042913 is a deficient number, since it is larger than the sum of its proper divisors (3761119).
25042913 is a wasteful number, since it uses less digits than its factorization.
25042913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22951.
The product of its (nonzero) digits is 2160, while the sum is 26.
The square root of 25042913 is about 5004.2894600532. The cubic root of 25042913 is about 292.5689826829.
Adding to 25042913 its reverse (31924052), we get a palindrome (56966965).
The spelling of 25042913 in words is "twenty-five million, forty-two thousand, nine hundred thirteen".
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