Base | Representation |
---|---|
bin | 1101101001010100010 |
3 | 211201100200 |
4 | 1231022202 |
5 | 103302023 |
6 | 13330030 |
7 | 3541416 |
oct | 1551242 |
9 | 751320 |
10 | 447138 |
11 | 285a3a |
12 | 196916 |
13 | 1286a3 |
14 | b8d46 |
15 | 8c743 |
hex | 6d2a2 |
447138 has 12 divisors (see below), whose sum is σ = 968838. Its totient is φ = 149040.
The previous prime is 447137. The next prime is 447173. The reversal of 447138 is 831744.
It can be written as a sum of positive squares in only one way, i.e., 439569 + 7569 = 663^2 + 87^2 .
It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (447133) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12403 + ... + 12438.
2447138 is an apocalyptic number.
447138 is an abundant number, since it is smaller than the sum of its proper divisors (521700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
447138 is a wasteful number, since it uses less digits than its factorization.
447138 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24849 (or 24846 counting only the distinct ones).
The product of its digits is 2688, while the sum is 27.
The square root of 447138 is about 668.6837817683. The cubic root of 447138 is about 76.4681400075.
Adding to 447138 its product of digits (2688), we get a triangular number (449826 = T948).
It can be divided in two parts, 447 and 138, that added together give a palindrome (585).
The spelling of 447138 in words is "four hundred forty-seven thousand, one hundred thirty-eight".
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