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20220220000 = 255423113389
BaseRepresentation
bin10010110101001110…
…000001001001100000
31221012011220121022001
4102311032001021200
5312402334020000
613142233253344
71314035014501
oct226516011140
957164817261
1020220220000
118636872622
123b03864254
131ba31c1526
14d9b64cba8
157d526b46a
hex4b5381260

20220220000 has 240 divisors, whose sum is σ = 52501569120. Its totient is φ = 7648256000.

The previous prime is 20220219989. The next prime is 20220220049. The reversal of 20220220000 is 2202202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 51979806 + ... + 51980194.

It is an arithmetic number, because the mean of its divisors is an integer number (218756538).

Almost surely, 220220220000 is an apocalyptic number.

20220220000 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 20220220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26250784560).

20220220000 is an abundant number, since it is smaller than the sum of its proper divisors (32281349120).

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

20220220000 is a wasteful number, since it uses less digits than its factorization.

20220220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 20220220000 its reverse (2202202), we get a palindrome (20222422202).

The spelling of 20220220000 in words is "twenty billion, two hundred twenty million, two hundred twenty thousand".