| Base | Representation |
|---|---|
| bin | 101010010110110… |
| … | …0010100100100000 |
| 3 | 10200001021200010020 |
| 4 | 1110231202210200 |
| 5 | 10402313133344 |
| 6 | 353005433440 |
| 7 | 50135130600 |
| oct | 12455424440 |
| 9 | 3601250106 |
| 10 | 1421224224 |
| 11 | 66a275882 |
| 12 | 337b6b880 |
| 13 | 1985a01a4 |
| 14 | d6a78c00 |
| 15 | 84b88719 |
| hex | 54b62920 |
1421224224 has 144 divisors (see below), whose sum is σ = 4356084096. Its totient is φ = 404544000.
The previous prime is 1421224223. The next prime is 1421224241. The reversal of 1421224224 is 4224221241.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 1421224194 and 1421224203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1421224223) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2027074 + ... + 2027774.
It is an arithmetic number, because the mean of its divisors is an integer number (30250584).
Almost surely, 21421224224 is an apocalyptic number.
1421224224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1421224224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2178042048).
1421224224 is an abundant number, since it is smaller than the sum of its proper divisors (2934859872).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1421224224 is a wasteful number, since it uses less digits than its factorization.
1421224224 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1159 (or 1144 counting only the distinct ones).
The product of its digits is 2048, while the sum is 24.
The square root of 1421224224 is about 37699.1276291640. The cubic root of 1421224224 is about 1124.3137804233.
Adding to 1421224224 its reverse (4224221241), we get a palindrome (5645445465).
The spelling of 1421224224 in words is "one billion, four hundred twenty-one million, two hundred twenty-four thousand, two hundred twenty-four".
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