Base | Representation |
---|---|
bin | 11011100111111111010001 |
3 | 111121220201102 |
4 | 123213333101 |
5 | 3323213211 |
6 | 415114145 |
7 | 115360526 |
oct | 33477721 |
9 | 14556642 |
10 | 7241681 |
11 | 40a6867 |
12 | 2512955 |
13 | 1667225 |
14 | d6714d |
15 | 980a3b |
hex | 6e7fd1 |
7241681 has 4 divisors (see below), whose sum is σ = 7254000. Its totient is φ = 7229364.
The previous prime is 7241671. The next prime is 7241699. The reversal of 7241681 is 1861427.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 7241681 - 26 = 7241617 is a prime.
It is a super-2 number, since 2×72416812 = 104883887411522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (7241671) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5231 + ... + 6468.
It is an arithmetic number, because the mean of its divisors is an integer number (1813500).
Almost surely, 27241681 is an apocalyptic number.
It is an amenable number.
7241681 is a deficient number, since it is larger than the sum of its proper divisors (12319).
7241681 is a wasteful number, since it uses less digits than its factorization.
7241681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12318.
The product of its digits is 2688, while the sum is 29.
The square root of 7241681 is about 2691.0371606501. The cubic root of 7241681 is about 193.4697765204.
The spelling of 7241681 in words is "seven million, two hundred forty-one thousand, six hundred eighty-one".
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