Base | Representation |
---|---|
bin | 100110001101… |
… | …0101000110111 |
3 | 1101200201210222 |
4 | 1030122220313 |
5 | 20112011210 |
6 | 1553204555 |
7 | 332161331 |
oct | 114325067 |
9 | 41621728 |
10 | 20032055 |
11 | 1034241a |
12 | 686075b |
13 | 41c4bb4 |
14 | 2936451 |
15 | 1b5a655 |
hex | 131aa37 |
20032055 has 4 divisors (see below), whose sum is σ = 24038472. Its totient is φ = 16025640.
The previous prime is 20032043. The next prime is 20032079. The reversal of 20032055 is 55023002.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55023002 = 2 ⋅27511501.
It is not a de Polignac number, because 20032055 - 28 = 20031799 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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, 2003201 + ... + 2003210.
It is an arithmetic number, because the mean of its divisors is an integer number (6009618).
Almost surely, 220032055 is an apocalyptic number.
20032055 is a deficient number, since it is larger than the sum of its proper divisors (4006417).
20032055 is an equidigital number, since it uses as much as digits as its factorization.
20032055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4006416.
The product of its (nonzero) digits is 300, while the sum is 17.
The square root of 20032055 is about 4475.7183780931. The cubic root of 20032055 is about 271.5867020138.
Adding to 20032055 its reverse (55023002), we get a palindrome (75055057).
The spelling of 20032055 in words is "twenty million, thirty-two thousand, fifty-five".
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