Base | Representation |
---|---|
bin | 11010010100111… |
… | …00010110011011 |
3 | 120101112220102001 |
4 | 31022130112123 |
5 | 423013410441 |
6 | 33525221431 |
7 | 5321056252 |
oct | 1512342633 |
9 | 511486361 |
10 | 220841371 |
11 | 103728433 |
12 | 61b61877 |
13 | 369a368a |
14 | 21489799 |
15 | 145c4731 |
hex | d29c59b |
220841371 has 4 divisors (see below), whose sum is σ = 221561032. Its totient is φ = 220121712.
The previous prime is 220841359. The next prime is 220841399. The reversal of 220841371 is 173148022.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 173148022 = 2 ⋅86574011.
It is a cyclic number.
It is not a de Polignac number, because 220841371 - 223 = 212452763 is a prime.
It is a super-2 number, since 2×2208413712 = 97541822290319282, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (220841321) 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, 359370 + ... + 359983.
It is an arithmetic number, because the mean of its divisors is an integer number (55390258).
Almost surely, 2220841371 is an apocalyptic number.
220841371 is a deficient number, since it is larger than the sum of its proper divisors (719661).
220841371 is an equidigital number, since it uses as much as digits as its factorization.
220841371 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 719660.
The product of its (nonzero) digits is 2688, while the sum is 28.
The square root of 220841371 is about 14860.7325189575. The cubic root of 220841371 is about 604.4496700774.
Adding to 220841371 its reverse (173148022), we get a palindrome (393989393).
The spelling of 220841371 in words is "two hundred twenty million, eight hundred forty-one thousand, three hundred seventy-one".
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