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20233210220 = 2251011660511
BaseRepresentation
bin10010110101111111…
…100100100101101100
31221020002100120112022
4102311333210211230
5312414200211340
613143415525312
71314253310036
oct226577444554
957202316468
1020233210220
118643135343
123b08089838
131ba5abc152
14d9d270c56
157d64853b5
hex4b5fe496c

20233210220 has 12 divisors (see below), whose sum is σ = 42489741504. Its totient is φ = 8093284080.

The previous prime is 20233210201. The next prime is 20233210223. The reversal of 20233210220 is 2201233202.

It is not an unprimeable number, because it can be changed into a prime (20233210223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505830236 + ... + 505830275.

It is an arithmetic number, because the mean of its divisors is an integer number (3540811792).

Almost surely, 220233210220 is an apocalyptic number.

20233210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233210220 is an abundant number, since it is smaller than the sum of its proper divisors (22256531284).

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

20233210220 is a wasteful number, since it uses less digits than its factorization.

20233210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011660520 (or 1011660518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20233210220 its reverse (2201233202), we get a palindrome (22434443422).

The spelling of 20233210220 in words is "twenty billion, two hundred thirty-three million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1011660511 2023321022 4046642044 5058302555 10116605110 20233210220