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20000200000 = 2655119091
BaseRepresentation
bin10010101000000110…
…101101010101000000
31220121211220102121011
4102220012231111000
5311430022400000
613104333410304
71305423615664
oct225006552500
956554812534
1020000200000
118533656310
123a62039994
131b69747991
14d7a3388a4
157c0caa2ba
hex4a81ad540

20000200000 has 168 divisors, whose sum is σ = 54122348448. Its totient is φ = 7272000000.

The previous prime is 20000199983. The next prime is 20000200021. The reversal of 20000200000 is 200002.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2195455 + ... + 2204545.

It is an arithmetic number, because the mean of its divisors is an integer number (322156836).

Almost surely, 220000200000 is an apocalyptic number.

20000200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27061174224).

20000200000 is an abundant number, since it is smaller than the sum of its proper divisors (34122148448).

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

20000200000 is an frugal number, since it uses more digits than its factorization.

20000200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9139 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 4.

Adding to 20000200000 its reverse (200002), we get a palindrome (20000400002).

20000200000 divided by its reverse (200002) gives a 5-th power (100000 = 105).

The spelling of 20000200000 in words is "twenty billion, two hundred thousand".