Base | Representation |
---|---|
bin | 100110100111… |
… | …0000111011111 |
3 | 1102002110001110 |
4 | 1031032013133 |
5 | 20140233121 |
6 | 2001513103 |
7 | 334030143 |
oct | 115160737 |
9 | 42073043 |
10 | 20242911 |
11 | 10476887 |
12 | 6942793 |
13 | 4269b70 |
14 | 298d223 |
15 | 1b9cd76 |
hex | 134e1df |
20242911 has 32 divisors (see below), whose sum is σ = 30220288. Its totient is φ = 11975040.
The previous prime is 20242897. The next prime is 20242927. The reversal of 20242911 is 11924202.
It is not a de Polignac number, because 20242911 - 25 = 20242879 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 (20242951) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159330 + ... + 159456.
It is an arithmetic number, because the mean of its divisors is an integer number (944384).
Almost surely, 220242911 is an apocalyptic number.
20242911 is a deficient number, since it is larger than the sum of its proper divisors (9977377).
20242911 is a wasteful number, since it uses less digits than its factorization.
20242911 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 271.
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 20242911 is about 4499.2122643858. The cubic root of 20242911 is about 272.5362788721.
The spelling of 20242911 in words is "twenty million, two hundred forty-two thousand, nine hundred eleven".
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