Base | Representation |
---|---|
bin | 11010110000010000000101 |
3 | 111012022112212 |
4 | 122300100011 |
5 | 3243412011 |
6 | 410153205 |
7 | 113420114 |
oct | 32602005 |
9 | 14168485 |
10 | 7013381 |
11 | 3a60291 |
12 | 2422805 |
13 | 15b733b |
14 | d07c7b |
15 | 93808b |
hex | 6b0405 |
7013381 has 2 divisors, whose sum is σ = 7013382. Its totient is φ = 7013380.
The previous prime is 7013371. The next prime is 7013393. The reversal of 7013381 is 1833107.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6584356 + 429025 = 2566^2 + 655^2 .
It is a cyclic number.
It is not a de Polignac number, because 7013381 - 26 = 7013317 is a prime.
It is a super-2 number, since 2×70133812 = 98375026102322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7013311) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506690 + 3506691.
It is an arithmetic number, because the mean of its divisors is an integer number (3506691).
Almost surely, 27013381 is an apocalyptic number.
It is an amenable number.
7013381 is a deficient number, since it is larger than the sum of its proper divisors (1).
7013381 is an equidigital number, since it uses as much as digits as its factorization.
7013381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 504, while the sum is 23.
The square root of 7013381 is about 2648.2788750432. The cubic root of 7013381 is about 191.4149308455.
Adding to 7013381 its reverse (1833107), we get a palindrome (8846488).
The spelling of 7013381 in words is "seven million, thirteen thousand, three hundred eighty-one".
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