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20211000200 = 2352101055001
BaseRepresentation
bin10010110100101010…
…110110001110001000
31221011112120012002222
4102310222312032020
5312343004001300
613141303513212
71313563444556
oct226452661610
957145505088
1020211000200
118631645656
123b00758808
131ba1313b21
14d9a32cbd6
157d4549785
hex4b4ab6388

20211000200 has 24 divisors (see below), whose sum is σ = 46990575930. Its totient is φ = 8084400000.

The previous prime is 20211000193. The next prime is 20211000211. The reversal of 20211000200 is 200011202.

It can be written as a sum of positive squares in 3 ways, for example, as 19699245316 + 511754884 = 140354^2 + 22622^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50527301 + ... + 50527700.

Almost surely, 220211000200 is an apocalyptic number.

20211000200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211000200 is an abundant number, since it is smaller than the sum of its proper divisors (26779575730).

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

20211000200 is a wasteful number, since it uses less digits than its factorization.

20211000200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101055017 (or 101055008 counting only the distinct ones).

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

Adding to 20211000200 its reverse (200011202), we get a palindrome (20411011402).

The spelling of 20211000200 in words is "twenty billion, two hundred eleven million, two hundred", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 101055001 202110002 404220004 505275005 808440008 1010550010 2021100020 2526375025 4042200040 5052750050 10105500100 20211000200