Search a number
-
+
20220200220 = 223511235692341
BaseRepresentation
bin10010110101001101…
…111100010100011100
31221012011212121011110
4102311031330110130
5312402332401340
613142233022020
71314034603023
oct226515742434
957164777143
1020220200220
118636859780
123b03854910
131ba31b551c
14d9b6458ba
157d5265680
hex4b537c51c

20220200220 has 192 divisors, whose sum is σ = 64589736960. Its totient is φ = 4678502400.

The previous prime is 20220200219. The next prime is 20220200227. The reversal of 20220200220 is 2200202202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20220200196 and 20220200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220200227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8636250 + ... + 8638590.

It is an arithmetic number, because the mean of its divisors is an integer number (336404880).

Almost surely, 220220200220 is an apocalyptic number.

20220200220 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 20220200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32294868480).

20220200220 is an abundant number, since it is smaller than the sum of its proper divisors (44369536740).

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

20220200220 is a wasteful number, since it uses less digits than its factorization.

20220200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956 (or 2954 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20220200220 its reverse (2200202202), we get a palindrome (22420402422).

The spelling of 20220200220 in words is "twenty billion, two hundred twenty million, two hundred thousand, two hundred twenty".