Base | Representation |
---|---|
bin | 1011001111111101111101 |
3 | 12112211020211 |
4 | 23033331331 |
5 | 1223331424 |
6 | 143112421 |
7 | 34031431 |
oct | 13177575 |
9 | 5484224 |
10 | 2948989 |
11 | 173468a |
12 | ba2711 |
13 | 7c3384 |
14 | 56a9c1 |
15 | 3d3b94 |
hex | 2cff7d |
2948989 has 4 divisors (see below), whose sum is σ = 2954556. Its totient is φ = 2943424.
The previous prime is 2948987. The next prime is 2949013. The reversal of 2948989 is 9898492.
It is a happy number.
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 1863225 + 1085764 = 1365^2 + 1042^2 .
It is a cyclic number.
It is not a de Polignac number, because 2948989 - 21 = 2948987 is a prime.
It is a super-2 number, since 2×29489892 = 17393072244242, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2948987) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894 + ... + 3079.
It is an arithmetic number, because the mean of its divisors is an integer number (738639).
22948989 is an apocalyptic number.
It is an amenable number.
2948989 is a deficient number, since it is larger than the sum of its proper divisors (5567).
2948989 is an equidigital number, since it uses as much as digits as its factorization.
2948989 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5566.
The product of its digits is 373248, while the sum is 49.
The square root of 2948989 is about 1717.2620650326. The cubic root of 2948989 is about 143.4028285076.
The spelling of 2948989 in words is "two million, nine hundred forty-eight thousand, nine hundred eighty-nine".
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