Base | Representation |
---|---|
bin | 1011011011010… |
… | …0100110001001 |
3 | 10100011212121202 |
4 | 2312310212021 |
5 | 44232110031 |
6 | 4431113545 |
7 | 1121234621 |
oct | 266644611 |
9 | 110155552 |
10 | 47925641 |
11 | 25064275 |
12 | 140728b5 |
13 | 9c1018a |
14 | 6517881 |
15 | 431a2cb |
hex | 2db4989 |
47925641 has 4 divisors (see below), whose sum is σ = 48738000. Its totient is φ = 47113284.
The previous prime is 47925623. The next prime is 47925649. The reversal of 47925641 is 14652974.
47925641 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 a de Polignac number, because none of the positive numbers 2k-47925641 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 47925595 and 47925604.
It is not an unprimeable number, because it can be changed into a prime (47925649) 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, 406091 + ... + 406208.
It is an arithmetic number, because the mean of its divisors is an integer number (12184500).
Almost surely, 247925641 is an apocalyptic number.
It is an amenable number.
47925641 is a deficient number, since it is larger than the sum of its proper divisors (812359).
47925641 is an equidigital number, since it uses as much as digits as its factorization.
47925641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 812358.
The product of its digits is 60480, while the sum is 38.
The square root of 47925641 is about 6922.8347517473. The cubic root of 47925641 is about 363.2363559228.
The spelling of 47925641 in words is "forty-seven million, nine hundred twenty-five thousand, six hundred forty-one".
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