Base | Representation |
---|---|
bin | 100101101100… |
… | …100101010101 |
3 | 200121001110211 |
4 | 211230211111 |
5 | 10012210231 |
6 | 551445421 |
7 | 146665216 |
oct | 45544525 |
9 | 20531424 |
10 | 9881941 |
11 | 563a4a3 |
12 | 3386871 |
13 | 207cc04 |
14 | 145340d |
15 | d02eb1 |
hex | 96c955 |
9881941 has 4 divisors (see below), whose sum is σ = 9979884. Its totient is φ = 9784000.
The previous prime is 9881909. The next prime is 9881951. The reversal of 9881941 is 1491889.
9881941 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.
It can be written as a sum of positive squares in 2 ways, for example, as 8099716 + 1782225 = 2846^2 + 1335^2 .
It is a cyclic number.
It is not a de Polignac number, because 9881941 - 25 = 9881909 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 9881894 and 9881903.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9881951) 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, 48820 + ... + 49021.
It is an arithmetic number, because the mean of its divisors is an integer number (2494971).
Almost surely, 29881941 is an apocalyptic number.
It is an amenable number.
9881941 is a deficient number, since it is larger than the sum of its proper divisors (97943).
9881941 is a wasteful number, since it uses less digits than its factorization.
9881941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 97942.
The product of its digits is 20736, while the sum is 40.
The square root of 9881941 is about 3143.5554711187. Note that the first 3 decimals coincide. The cubic root of 9881941 is about 214.5922757786.
The spelling of 9881941 in words is "nine million, eight hundred eighty-one thousand, nine hundred forty-one".
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