Search a number
-
+
2020111 = 29411699
BaseRepresentation
bin111101101001100001111
310210122001221
413231030033
51004120421
6111144211
723112352
oct7551417
93718057
102020111
11115a815
12815067
13559642
143a8299
1529d841
hex1ed30f

2020111 has 8 divisors (see below), whose sum is σ = 2142000. Its totient is φ = 1901760.

The previous prime is 2020091. The next prime is 2020147. The reversal of 2020111 is 1110202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020111 - 25 = 2020079 is a prime.

It is a Duffinian number.

2020111 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2020094 and 2020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020171) 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 7 ways as a sum of consecutive naturals, for example, 340 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (267750).

22020111 is an apocalyptic number.

2020111 is a deficient number, since it is larger than the sum of its proper divisors (121889).

2020111 is a wasteful number, since it uses less digits than its factorization.

2020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 2020111 is about 1421.3060894825. The cubic root of 2020111 is about 126.4130018872.

Adding to 2020111 its reverse (1110202), we get a palindrome (3130313).

Subtracting from 2020111 its reverse (1110202), we obtain a palindrome (909909).

The spelling of 2020111 in words is "two million, twenty thousand, one hundred eleven".

Divisors: 1 29 41 1189 1699 49271 69659 2020111