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20012442200 = 2352100062211
BaseRepresentation
bin10010101000110101…
…011010001001011000
31220122200221101201222
4102220311122021120
5311441141122300
613105452031212
71305632644352
oct225065321130
956580841658
1020012442200
11853a558033
123a66162508
131b6c142c9a
14d7bc040d2
157c1dc7785
hex4a8d5a258

20012442200 has 24 divisors (see below), whose sum is σ = 46528928580. Its totient is φ = 8004976800.

The previous prime is 20012442167. The next prime is 20012442217. The reversal of 20012442200 is 224421002.

It is a happy number.

It is a congruent number.

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, 50030906 + ... + 50031305.

Almost surely, 220012442200 is an apocalyptic number.

20012442200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012442200 is an abundant number, since it is smaller than the sum of its proper divisors (26516486380).

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

20012442200 is a wasteful number, since it uses less digits than its factorization.

20012442200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100062227 (or 100062218 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20012442200 its reverse (224421002), we get a palindrome (20236863202).

The spelling of 20012442200 in words is "twenty billion, twelve million, four hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 100062211 200124422 400248844 500311055 800497688 1000622110 2001244220 2501555275 4002488440 5003110550 10006221100 20012442200