Base | Representation |
---|---|
bin | 101010011010100… |
… | …1010010011110101 |
3 | 10200012001011120010 |
4 | 1110311022103311 |
5 | 10403321101010 |
6 | 353120330433 |
7 | 50161121202 |
oct | 12465122365 |
9 | 3605034503 |
10 | 1423222005 |
11 | 67040a837 |
12 | 338773a19 |
13 | 198b1c5ca |
14 | d7038ca9 |
15 | 84e30620 |
hex | 54d4a4f5 |
1423222005 has 32 divisors (see below), whose sum is σ = 2310497280. Its totient is φ = 748016640.
The previous prime is 1423222001. The next prime is 1423222027. The reversal of 1423222005 is 5002223241.
It is not a de Polignac number, because 1423222005 - 22 = 1423222001 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1423222001) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304476 + ... + 309114.
It is an arithmetic number, because the mean of its divisors is an integer number (72203040).
Almost surely, 21423222005 is an apocalyptic number.
1423222005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1423222005 is a deficient number, since it is larger than the sum of its proper divisors (887275275).
1423222005 is a wasteful number, since it uses less digits than its factorization.
1423222005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4941.
The product of its (nonzero) digits is 960, while the sum is 21.
The square root of 1423222005 is about 37725.6147067215. The cubic root of 1423222005 is about 1124.8403407991.
Adding to 1423222005 its reverse (5002223241), we get a palindrome (6425445246).
The spelling of 1423222005 in words is "one billion, four hundred twenty-three million, two hundred twenty-two thousand, five".
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