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2020211100 = 223252193137103
BaseRepresentation
bin111100001101001…
…1111100110011100
312012210101100122100
41320122133212130
513114133223400
6532244045100
7101030340165
oct17032374634
95183340570
102020211100
119473a1556
12484693790
132627028ab
1415243a76c
15bc556100
hex7869f99c

2020211100 has 432 divisors, whose sum is σ = 7135098880. Its totient is φ = 475891200.

The previous prime is 2020211059. The next prime is 2020211101. The reversal of 2020211100 is 11120202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020211101) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 19613649 + ... + 19613751.

Almost surely, 22020211100 is an apocalyptic number.

2020211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020211100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3567549440).

2020211100 is an abundant number, since it is smaller than the sum of its proper divisors (5114887780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020211100 is a wasteful number, since it uses less digits than its factorization.

2020211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2020211100 is about 44946.7585038120. The cubic root of 2020211100 is about 1264.1508984712.

Adding to 2020211100 its reverse (11120202), we get a palindrome (2031331302).

The spelling of 2020211100 in words is "two billion, twenty million, two hundred eleven thousand, one hundred".