Base | Representation |
---|---|
bin | 110000011011… |
… | …0011111001111 |
3 | 1202202220011121 |
4 | 1200312133033 |
5 | 22444422012 |
6 | 2304101411 |
7 | 425542300 |
oct | 140663717 |
9 | 52686147 |
10 | 25389007 |
11 | 13371156 |
12 | 8604867 |
13 | 534c2a7 |
14 | 352c7a7 |
15 | 2367a07 |
hex | 18367cf |
25389007 has 24 divisors (see below), whose sum is σ = 32380560. Its totient is φ = 19756800.
The previous prime is 25388999. The next prime is 25389011. The reversal of 25389007 is 70098352.
It is not a de Polignac number, because 25389007 - 23 = 25388999 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25389037) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23632 + ... + 24682.
It is an arithmetic number, because the mean of its divisors is an integer number (1349190).
Almost surely, 225389007 is an apocalyptic number.
25389007 is a deficient number, since it is larger than the sum of its proper divisors (6991553).
25389007 is a wasteful number, since it uses less digits than its factorization.
25389007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1111 (or 1104 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 34.
The square root of 25389007 is about 5038.7505395683. The cubic root of 25389007 is about 293.9105926168.
The spelling of 25389007 in words is "twenty-five million, three hundred eighty-nine thousand, seven".
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