Base | Representation |
---|---|
bin | 110000001010… |
… | …1010100011001 |
3 | 1202111222210200 |
4 | 1200111110121 |
5 | 22431100040 |
6 | 2301132413 |
7 | 424435221 |
oct | 140252431 |
9 | 52458720 |
10 | 25253145 |
11 | 13289075 |
12 | 855a109 |
13 | 53024b8 |
14 | 34d5081 |
15 | 233c630 |
hex | 1815519 |
25253145 has 12 divisors (see below), whose sum is σ = 43772196. Its totient is φ = 13468320.
The previous prime is 25253117. The next prime is 25253159. The reversal of 25253145 is 54135252.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 16941456 + 8311689 = 4116^2 + 2883^2 .
It is not a de Polignac number, because 25253145 - 211 = 25251097 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280546 + ... + 280635.
It is an arithmetic number, because the mean of its divisors is an integer number (3647683).
Almost surely, 225253145 is an apocalyptic number.
It is an amenable number.
25253145 is a deficient number, since it is larger than the sum of its proper divisors (18519051).
25253145 is a wasteful number, since it uses less digits than its factorization.
25253145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 561192 (or 561189 counting only the distinct ones).
The product of its digits is 6000, while the sum is 27.
The square root of 25253145 is about 5025.2507400129. The cubic root of 25253145 is about 293.3853952302.
Adding to 25253145 its reverse (54135252), we get a palindrome (79388397).
The spelling of 25253145 in words is "twenty-five million, two hundred fifty-three thousand, one hundred forty-five".
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