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20242911 = 3136167127
BaseRepresentation
bin100110100111…
…0000111011111
31102002110001110
41031032013133
520140233121
62001513103
7334030143
oct115160737
942073043
1020242911
1110476887
126942793
134269b70
14298d223
151b9cd76
hex134e1df

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".

Divisors: 1 3 13 39 61 67 127 183 201 381 793 871 1651 2379 2613 4087 4953 7747 8509 12261 23241 25527 53131 100711 110617 159393 302133 331851 519049 1557147 6747637 20242911