Base | Representation |
---|---|
bin | 101100001100100010111 |
3 | 2201120120121 |
4 | 11201210113 |
5 | 332320330 |
6 | 51012411 |
7 | 15211126 |
oct | 5414427 |
9 | 2646517 |
10 | 1448215 |
11 | 8aa07a |
12 | 59a107 |
13 | 3b9242 |
14 | 299abd |
15 | 1d917a |
hex | 161917 |
1448215 has 4 divisors (see below), whose sum is σ = 1737864. Its totient is φ = 1158568.
The previous prime is 1448207. The next prime is 1448219. The reversal of 1448215 is 5128441.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5128441 = 17 ⋅301673.
It is a cyclic number.
It is not a de Polignac number, because 1448215 - 23 = 1448207 is a prime.
It is a Duffinian number.
It is a plaindrome in base 14.
It is a self number, because there is not a number n which added to its sum of digits gives 1448215.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1448219) 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, 144817 + ... + 144826.
It is an arithmetic number, because the mean of its divisors is an integer number (434466).
21448215 is an apocalyptic number.
1448215 is a deficient number, since it is larger than the sum of its proper divisors (289649).
1448215 is an equidigital number, since it uses as much as digits as its factorization.
1448215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 289648.
The product of its digits is 1280, while the sum is 25.
The square root of 1448215 is about 1203.4180487262. The cubic root of 1448215 is about 113.1386555964.
The spelling of 1448215 in words is "one million, four hundred forty-eight thousand, two hundred fifteen".
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