Base | Representation |
---|---|
bin | 100110111101010 |
3 | 1000100202 |
4 | 10313222 |
5 | 1114241 |
6 | 232202 |
7 | 112103 |
oct | 46752 |
9 | 30322 |
10 | 19946 |
11 | 13a93 |
12 | b662 |
13 | 9104 |
14 | 73aa |
15 | 5d9b |
hex | 4dea |
19946 has 4 divisors (see below), whose sum is σ = 29922. Its totient is φ = 9972.
The previous prime is 19937. The next prime is 19949. The reversal of 19946 is 64991.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64991 = 17 ⋅3823.
It can be written as a sum of positive squares in only one way, i.e., 19321 + 625 = 139^2 + 25^2 .
It is a nialpdrome in base 12.
It is not an unprimeable number, because it can be changed into a prime (19949) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985 + ... + 4988.
219946 is an apocalyptic number.
19946 is a deficient number, since it is larger than the sum of its proper divisors (9976).
19946 is an equidigital number, since it uses as much as digits as its factorization.
19946 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9975.
The product of its digits is 1944, while the sum is 29.
The square root of 19946 is about 141.2303083619. The cubic root of 19946 is about 27.1197243876.
The spelling of 19946 in words is "nineteen thousand, nine hundred forty-six".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •