Base | Representation |
---|---|
bin | 101111111100… |
… | …0010101100000 |
3 | 1202021221221220 |
4 | 1133320111200 |
5 | 22413300212 |
6 | 2254415040 |
7 | 423432141 |
oct | 137702540 |
9 | 52257856 |
10 | 25134432 |
11 | 13207964 |
12 | 8501480 |
13 | 529045b |
14 | 34a3ac8 |
15 | 231738c |
hex | 17f8560 |
25134432 has 48 divisors (see below), whose sum is σ = 69863472. Its totient is φ = 7884800.
The previous prime is 25134391. The next prime is 25134463. The reversal of 25134432 is 23443152.
It is a tau number, because it is divible by the number of its divisors (48).
It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 6069 + ... + 9332.
It is an arithmetic number, because the mean of its divisors is an integer number (1455489).
Almost surely, 225134432 is an apocalyptic number.
It is an amenable number.
25134432 is an abundant number, since it is smaller than the sum of its proper divisors (44729040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25134432 is a wasteful number, since it uses less digits than its factorization.
25134432 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15431 (or 15423 counting only the distinct ones).
The product of its digits is 2880, while the sum is 24.
The square root of 25134432 is about 5013.4251764637. The cubic root of 25134432 is about 292.9249459280.
Adding to 25134432 its reverse (23443152), we get a palindrome (48577584).
The spelling of 25134432 in words is "twenty-five million, one hundred thirty-four thousand, four hundred thirty-two".
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