Base | Representation |
---|---|
bin | 1010110101111101110001 |
3 | 12100102011002 |
4 | 22311331301 |
5 | 1211424411 |
6 | 140531345 |
7 | 33106055 |
oct | 12657561 |
9 | 5312132 |
10 | 2842481 |
11 | 1671664 |
12 | b50b55 |
13 | 786a55 |
14 | 53dc65 |
15 | 3b233b |
hex | 2b5f71 |
2842481 has 4 divisors (see below), whose sum is σ = 2847732. Its totient is φ = 2837232.
The previous prime is 2842459. The next prime is 2842487. The reversal of 2842481 is 1842482.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1842482 = 2 ⋅921241.
It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 2608225 = 484^2 + 1615^2 .
It is a cyclic number.
It is not a de Polignac number, because 2842481 - 210 = 2841457 is a prime.
It is a super-2 number, since 2×28424812 = 16159396470722, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (2842487) 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, 1706 + ... + 2931.
It is an arithmetic number, because the mean of its divisors is an integer number (711933).
22842481 is an apocalyptic number.
It is an amenable number.
2842481 is a deficient number, since it is larger than the sum of its proper divisors (5251).
2842481 is an equidigital number, since it uses as much as digits as its factorization.
2842481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5250.
The product of its digits is 4096, while the sum is 29.
The square root of 2842481 is about 1685.9658952660. The cubic root of 2842481 is about 141.6552006099.
Subtracting from 2842481 its reverse (1842482), we obtain a palindrome (999999).
The spelling of 2842481 in words is "two million, eight hundred forty-two thousand, four hundred eighty-one".
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