Base | Representation |
---|---|
bin | 1011001101010… |
… | …0011101001001 |
3 | 10021110020020210 |
4 | 2303110131021 |
5 | 44013220221 |
6 | 4355311333 |
7 | 1110362166 |
oct | 263243511 |
9 | 107406223 |
10 | 47007561 |
11 | 24597527 |
12 | 138ab549 |
13 | 997b333 |
14 | 635906d |
15 | 41d8276 |
hex | 2cd4749 |
47007561 has 16 divisors (see below), whose sum is σ = 66023424. Its totient is φ = 29691024.
The previous prime is 47007559. The next prime is 47007593. The reversal of 47007561 is 16570074.
It is a happy number.
47007561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 47007561 - 21 = 47007559 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (47007161) 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 15 ways as a sum of consecutive naturals, for example, 4200 + ... + 10566.
It is an arithmetic number, because the mean of its divisors is an integer number (4126464).
Almost surely, 247007561 is an apocalyptic number.
It is an amenable number.
47007561 is a deficient number, since it is larger than the sum of its proper divisors (19015863).
47007561 is a wasteful number, since it uses less digits than its factorization.
47007561 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6500.
The product of its (nonzero) digits is 5880, while the sum is 30.
The square root of 47007561 is about 6856.2060208252. The cubic root of 47007561 is about 360.9019589862.
The spelling of 47007561 in words is "forty-seven million, seven thousand, five hundred sixty-one".
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