Base | Representation |
---|---|
bin | 110000001110… |
… | …0101011010100 |
3 | 1202120112010221 |
4 | 1200130223110 |
5 | 22433031114 |
6 | 2301524124 |
7 | 424622125 |
oct | 140345324 |
9 | 52515127 |
10 | 25283284 |
11 | 132a9784 |
12 | 8573644 |
13 | 5313130 |
14 | 350204c |
15 | 2346524 |
hex | 181cad4 |
25283284 has 48 divisors (see below), whose sum is σ = 51882768. Its totient is φ = 10672128.
The previous prime is 25283261. The next prime is 25283317. The reversal of 25283284 is 48238252.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 183184 + 25100100 = 428^2 + 5010^2 .
It is a Harshad number since it is a multiple of its sum of digits (34).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32322 + ... + 33094.
It is an arithmetic number, because the mean of its divisors is an integer number (1080891).
Almost surely, 225283284 is an apocalyptic number.
It is an amenable number.
25283284 is an abundant number, since it is smaller than the sum of its proper divisors (26599484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25283284 is a wasteful number, since it uses less digits than its factorization.
25283284 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 844 (or 842 counting only the distinct ones).
The product of its digits is 30720, while the sum is 34.
The square root of 25283284 is about 5028.2486016505. The cubic root of 25283284 is about 293.5020648839.
The spelling of 25283284 in words is "twenty-five million, two hundred eighty-three thousand, two hundred eighty-four".
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