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20286001100 = 2252375482703
BaseRepresentation
bin10010111001001000…
…111100111111001100
31221100202200122000002
4102321020330333030
5313021204013400
613152543223432
71315464110231
oct227110747714
957322618002
1020286001100
11866aa11972
123b218a7b78
131bb3a13961
14da6293788
157dae11ed5
hex4b923cfcc

20286001100 has 36 divisors (see below), whose sum is σ = 45210377184. Its totient is φ = 7895090880.

The previous prime is 20286001079. The next prime is 20286001103. The reversal of 20286001100 is 110068202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20286001103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2737652 + ... + 2745051.

Almost surely, 220286001100 is an apocalyptic number.

20286001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20286001100 is an abundant number, since it is smaller than the sum of its proper divisors (24924376084).

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

20286001100 is a wasteful number, since it uses less digits than its factorization.

20286001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482754 (or 5482747 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20286001100 its reverse (110068202), we get a palindrome (20396069302).

The spelling of 20286001100 in words is "twenty billion, two hundred eighty-six million, one thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 100 148 185 370 740 925 1850 3700 5482703 10965406 21930812 27413515 54827030 109654060 137067575 202860011 274135150 405720022 548270300 811440044 1014300055 2028600110 4057200220 5071500275 10143000550 20286001100