Base | Representation |
---|---|
bin | 11011111101101101111001 |
3 | 111210102210201 |
4 | 123331231321 |
5 | 3334040211 |
6 | 421042201 |
7 | 116211151 |
oct | 33755571 |
9 | 14712721 |
10 | 7330681 |
11 | 4157716 |
12 | 2556361 |
13 | 16988a7 |
14 | d8b761 |
15 | 99c0c1 |
hex | 6fdb79 |
7330681 has 8 divisors (see below), whose sum is σ = 7462728. Its totient is φ = 7200000.
The previous prime is 7330669. The next prime is 7330693. The reversal of 7330681 is 1860337.
It is an interprime number because it is at equal distance from previous prime (7330669) and next prime (7330693).
It can be written as a sum of positive squares in 4 ways, for example, as 2958400 + 4372281 = 1720^2 + 2091^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 5-Lehmer number, since φ(7330681) divides (7330681-1)5.
It is a cyclic number.
It is not a de Polignac number, because 7330681 - 213 = 7322489 is a prime.
It is a super-2 number, since 2×73306812 = 107477767847522, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7330481) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 18081 + ... + 18481.
It is an arithmetic number, because the mean of its divisors is an integer number (932841).
Almost surely, 27330681 is an apocalyptic number.
It is an amenable number.
7330681 is a deficient number, since it is larger than the sum of its proper divisors (132047).
7330681 is a wasteful number, since it uses less digits than its factorization.
7330681 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 683.
The product of its (nonzero) digits is 3024, while the sum is 28.
The square root of 7330681 is about 2707.5230377598. The cubic root of 7330681 is about 194.2591304612.
The spelling of 7330681 in words is "seven million, three hundred thirty thousand, six hundred eighty-one".
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