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20212020200 = 2352101060101
BaseRepresentation
bin10010110100101110…
…101111001111101000
31221011121111000021202
4102310232233033220
5312343234121300
613141341423332
71313605223411
oct226456571750
957147430252
1020212020200
118632181a29
123b00b6ab48
131ba15b0188
14d9a516808
157d469bad5
hex4b4baf3e8

20212020200 has 24 divisors (see below), whose sum is σ = 46992947430. Its totient is φ = 8084808000.

The previous prime is 20212020133. The next prime is 20212020217. The reversal of 20212020200 is 202021202.

It can be written as a sum of positive squares in 3 ways, for example, as 17319086404 + 2892933796 = 131602^2 + 53786^2 .

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, 50529851 + ... + 50530250.

Almost surely, 220212020200 is an apocalyptic number.

20212020200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212020200 is an abundant number, since it is smaller than the sum of its proper divisors (26780927230).

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

20212020200 is a wasteful number, since it uses less digits than its factorization.

20212020200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101060117 (or 101060108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20212020200 its reverse (202021202), we get a palindrome (20414041402).

The spelling of 20212020200 in words is "twenty billion, two hundred twelve million, twenty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 101060101 202120202 404240404 505300505 808480808 1010601010 2021202020 2526502525 4042404040 5053005050 10106010100 20212020200