Base | Representation |
---|---|
bin | 11011000010110011100101 |
3 | 111100011210200 |
4 | 123002303211 |
5 | 3303330011 |
6 | 411541113 |
7 | 114154515 |
oct | 33026345 |
9 | 14304720 |
10 | 7089381 |
11 | 40023a2 |
12 | 245a799 |
13 | 1612b00 |
14 | d27845 |
15 | 950856 |
hex | 6c2ce5 |
7089381 has 36 divisors (see below), whose sum is σ = 11419200. Its totient is φ = 4234464.
The previous prime is 7089377. The next prime is 7089403. The reversal of 7089381 is 1839807.
7089381 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 7089381 - 22 = 7089377 is a prime.
It is a super-2 number, since 2×70893812 = 100518645926322, which contains 22 as substring.
It is a Curzon number.
7089381 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7089301) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 89700 + ... + 89778.
It is an arithmetic number, because the mean of its divisors is an integer number (317200).
Almost surely, 27089381 is an apocalyptic number.
It is an amenable number.
7089381 is a deficient number, since it is larger than the sum of its proper divisors (4329819).
7089381 is a wasteful number, since it uses less digits than its factorization.
7089381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 170 (or 154 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 36.
The square root of 7089381 is about 2662.5891534369. The cubic root of 7089381 is about 192.1038663273.
The spelling of 7089381 in words is "seven million, eighty-nine thousand, three hundred eighty-one".
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