Base | Representation |
---|---|
bin | 1000001111011111… |
… | …0101111011111111 |
3 | 12201012010022112001 |
4 | 2003313311323333 |
5 | 14012342013033 |
6 | 1003312323131 |
7 | 105553356424 |
oct | 20367657377 |
9 | 5635108461 |
10 | 2212454143 |
11 | a359665a9 |
12 | 518b434a7 |
13 | 2934a2283 |
14 | 16db9dd4b |
15 | ce37be7d |
hex | 83df5eff |
2212454143 has 4 divisors (see below), whose sum is σ = 2242761808. Its totient is φ = 2182146480.
The previous prime is 2212454131. The next prime is 2212454197. The reversal of 2212454143 is 3414542122.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3414542122 = 2 ⋅1707271061.
It is a cyclic number.
It is not a de Polignac number, because 2212454143 - 29 = 2212453631 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2212454743) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15153723 + ... + 15153868.
It is an arithmetic number, because the mean of its divisors is an integer number (560690452).
Almost surely, 22212454143 is an apocalyptic number.
2212454143 is a deficient number, since it is larger than the sum of its proper divisors (30307665).
2212454143 is an equidigital number, since it uses as much as digits as its factorization.
2212454143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30307664.
The product of its digits is 7680, while the sum is 28.
The square root of 2212454143 is about 47036.7318486308. The cubic root of 2212454143 is about 1303.0410351258.
Adding to 2212454143 its reverse (3414542122), we get a palindrome (5626996265).
It can be divided in two parts, 22124 and 54143, that added together give a palindrome (76267).
The spelling of 2212454143 in words is "two billion, two hundred twelve million, four hundred fifty-four thousand, one hundred forty-three".
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