Base | Representation |
---|---|
bin | 11010101110001011010001 |
3 | 111011212220001 |
4 | 122232023101 |
5 | 3243124011 |
6 | 410050001 |
7 | 113353252 |
oct | 32561321 |
9 | 14155801 |
10 | 7004881 |
11 | 3a54964 |
12 | 2419901 |
13 | 15b3500 |
14 | d04b29 |
15 | 9357c1 |
hex | 6ae2d1 |
7004881 has 12 divisors (see below), whose sum is σ = 7660380. Its totient is φ = 6402240.
The previous prime is 7004873. The next prime is 7004887. The reversal of 7004881 is 1884007.
It is the 1081-st star number.
It can be written as a sum of positive squares in 6 ways, for example, as 1440000 + 5564881 = 1200^2 + 2359^2 .
It is not a de Polignac number, because 7004881 - 23 = 7004873 is a prime.
It is a super-2 number, since 2×70048812 = 98136715648322, which contains 22 as substring.
7004881 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (7004887) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30475 + ... + 30703.
It is an arithmetic number, because the mean of its divisors is an integer number (638365).
Almost surely, 27004881 is an apocalyptic number.
It is an amenable number.
7004881 is a deficient number, since it is larger than the sum of its proper divisors (655499).
7004881 is a wasteful number, since it uses less digits than its factorization.
7004881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 436 (or 423 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 7004881 is about 2646.6735726190. The cubic root of 7004881 is about 191.3375699332.
Adding to 7004881 its reverse (1884007), we get a palindrome (8888888).
The spelling of 7004881 in words is "seven million, four thousand, eight hundred eighty-one".
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