Base | Representation |
---|---|
bin | 1011001110010000011101 |
3 | 12112110122021 |
4 | 23032100131 |
5 | 1223120411 |
6 | 143020141 |
7 | 34002130 |
oct | 13162035 |
9 | 5473567 |
10 | 2941981 |
11 | 172a399 |
12 | b9a651 |
13 | 7c0123 |
14 | 568217 |
15 | 3d1a71 |
hex | 2ce41d |
2941981 has 12 divisors (see below), whose sum is σ = 3466848. Its totient is φ = 2445552.
The previous prime is 2941957. The next prime is 2942011. The reversal of 2941981 is 1891492.
2941981 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 2941981 - 213 = 2933789 is a prime.
It is a super-2 number, since 2×29419812 = 17310504408722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2941921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9430 + ... + 9736.
It is an arithmetic number, because the mean of its divisors is an integer number (288904).
22941981 is an apocalyptic number.
It is an amenable number.
2941981 is a deficient number, since it is larger than the sum of its proper divisors (524867).
2941981 is an equidigital number, since it uses as much as digits as its factorization.
2941981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 388 (or 351 counting only the distinct ones).
The product of its digits is 5184, while the sum is 34.
The square root of 2941981 is about 1715.2203940019. The cubic root of 2941981 is about 143.2891438804.
The spelling of 2941981 in words is "two million, nine hundred forty-one thousand, nine hundred eighty-one".
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