Base | Representation |
---|---|
bin | 11010011110101… |
… | …11011110101111 |
3 | 120110222111000102 |
4 | 31033113132233 |
5 | 423331212033 |
6 | 34013021315 |
7 | 5335043402 |
oct | 1517273657 |
9 | 513874012 |
10 | 222132143 |
11 | 10442a192 |
12 | 6248483b |
13 | 3703604c |
14 | 21703d39 |
15 | 1477bde8 |
hex | d3d77af |
222132143 has 4 divisors (see below), whose sum is σ = 229297728. Its totient is φ = 214966560.
The previous prime is 222132101. The next prime is 222132187. The reversal of 222132143 is 341231222.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 222132143 - 28 = 222131887 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 (222132193) 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, 3582746 + ... + 3582807.
It is an arithmetic number, because the mean of its divisors is an integer number (57324432).
Almost surely, 2222132143 is an apocalyptic number.
222132143 is a deficient number, since it is larger than the sum of its proper divisors (7165585).
222132143 is an equidigital number, since it uses as much as digits as its factorization.
222132143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7165584.
The product of its digits is 576, while the sum is 20.
The square root of 222132143 is about 14904.0981947919. The cubic root of 222132143 is about 605.6250108116.
Adding to 222132143 its reverse (341231222), we get a palindrome (563363365).
The spelling of 222132143 in words is "two hundred twenty-two million, one hundred thirty-two thousand, one hundred forty-three".
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