Base | Representation |
---|---|
bin | 100110100111… |
… | …0101000010010 |
3 | 1102002112221012 |
4 | 1031032220102 |
5 | 20140320020 |
6 | 2001530522 |
7 | 334036232 |
oct | 115165022 |
9 | 42075835 |
10 | 20245010 |
11 | 10478415 |
12 | 6943a42 |
13 | 426aac6 |
14 | 298dcc2 |
15 | 1b9d7c5 |
hex | 134ea12 |
20245010 has 8 divisors (see below), whose sum is σ = 36441036. Its totient is φ = 8098000.
The previous prime is 20245007. The next prime is 20245019. The reversal of 20245010 is 1054202.
It can be written as a sum of positive squares in 2 ways, for example, as 20079361 + 165649 = 4481^2 + 407^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (20245019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012241 + ... + 1012260.
Almost surely, 220245010 is an apocalyptic number.
20245010 is a deficient number, since it is larger than the sum of its proper divisors (16196026).
20245010 is a wasteful number, since it uses less digits than its factorization.
20245010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2024508.
The product of its (nonzero) digits is 80, while the sum is 14.
The square root of 20245010 is about 4499.4455213948. The cubic root of 20245010 is about 272.5456983652.
Adding to 20245010 its reverse (1054202), we get a palindrome (21299212).
The spelling of 20245010 in words is "twenty million, two hundred forty-five thousand, ten".
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