Base | Representation |
---|---|
bin | 11110010011110110101 |
3 | 1212110102101 |
4 | 3302132311 |
5 | 223240310 |
6 | 33142101 |
7 | 11304433 |
oct | 3623665 |
9 | 1773371 |
10 | 993205 |
11 | 619234 |
12 | 3ba931 |
13 | 28a0c5 |
14 | 1bbd53 |
15 | 14943a |
hex | f27b5 |
993205 has 4 divisors (see below), whose sum is σ = 1191852. Its totient is φ = 794560.
The previous prime is 993203. The next prime is 993211. The reversal of 993205 is 502399.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502399 = 83 ⋅6053.
It can be written as a sum of positive squares in 2 ways, for example, as 654481 + 338724 = 809^2 + 582^2 .
It is not a de Polignac number, because 993205 - 21 = 993203 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (993203) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99316 + ... + 99325.
It is an arithmetic number, because the mean of its divisors is an integer number (297963).
2993205 is an apocalyptic number.
It is an amenable number.
993205 is a deficient number, since it is larger than the sum of its proper divisors (198647).
993205 is a wasteful number, since it uses less digits than its factorization.
993205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 198646.
The product of its (nonzero) digits is 2430, while the sum is 28.
The square root of 993205 is about 996.5967088045. The cubic root of 993205 is about 99.7729850320.
The spelling of 993205 in words is "nine hundred ninety-three thousand, two hundred five".
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