Base | Representation |
---|---|
bin | 101111111011… |
… | …1111001001100 |
3 | 1202021212110210 |
4 | 1133313321030 |
5 | 22413220440 |
6 | 2254402420 |
7 | 423423642 |
oct | 137677114 |
9 | 52255423 |
10 | 25132620 |
11 | 13206567 |
12 | 8500410 |
13 | 528c696 |
14 | 34a3192 |
15 | 2316a80 |
hex | 17f7e4c |
25132620 has 48 divisors (see below), whose sum is σ = 72279648. Its totient is φ = 6520320.
The previous prime is 25132607. The next prime is 25132633. The reversal of 25132620 is 2623152.
It is an interprime number because it is at equal distance from previous prime (25132607) and next prime (25132633).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3441 + ... + 7880.
It is an arithmetic number, because the mean of its divisors is an integer number (1505826).
Almost surely, 225132620 is an apocalyptic number.
25132620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
25132620 is an abundant number, since it is smaller than the sum of its proper divisors (47147028).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25132620 is a wasteful number, since it uses less digits than its factorization.
25132620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11370 (or 11368 counting only the distinct ones).
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 25132620 is about 5013.2444584321. The cubic root of 25132620 is about 292.9179065440.
Adding to 25132620 its reverse (2623152), we get a palindrome (27755772).
It can be divided in two parts, 25132 and 620, that added together give a palindrome (25752).
The spelling of 25132620 in words is "twenty-five million, one hundred thirty-two thousand, six hundred twenty".
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