Base | Representation |
---|---|
bin | 1011010000111… |
… | …0101011000101 |
3 | 10021220100100122 |
4 | 2310032223011 |
5 | 44043333041 |
6 | 4404351325 |
7 | 1112404334 |
oct | 264165305 |
9 | 107810318 |
10 | 47246021 |
11 | 2473a6a9 |
12 | 139a5545 |
13 | 9a32a34 |
14 | 63bbd1b |
15 | 4233c4b |
hex | 2d0eac5 |
47246021 has 4 divisors (see below), whose sum is σ = 47359200. Its totient is φ = 47132844.
The previous prime is 47245999. The next prime is 47246033. The reversal of 47246021 is 12064274.
47246021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 47246021 - 222 = 43051717 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47246051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55961 + ... + 56798.
It is an arithmetic number, because the mean of its divisors is an integer number (11839800).
Almost surely, 247246021 is an apocalyptic number.
It is an amenable number.
47246021 is a deficient number, since it is larger than the sum of its proper divisors (113179).
47246021 is a wasteful number, since it uses less digits than its factorization.
47246021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 113178.
The product of its (nonzero) digits is 2688, while the sum is 26.
The square root of 47246021 is about 6873.5741066784. The cubic root of 47246021 is about 361.5111912397.
The spelling of 47246021 in words is "forty-seven million, two hundred forty-six thousand, twenty-one".
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