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20132000000 = 28567719
BaseRepresentation
bin10010101111111101…
…011111000100000000
31220222000220120012122
4102233331133010000
5312212243000000
613125402343412
71311614114360
oct225775370400
956860816178
1020132000000
1185a0a97632
123a9a1bab68
131b8ab43848
14d8da469a0
157cc642085
hex4aff5f100

20132000000 has 252 divisors, whose sum is σ = 57486764160. Its totient is φ = 6892800000.

The previous prime is 20131999967. The next prime is 20132000003. The reversal of 20132000000 is 23102.

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

It is not an unprimeable number, because it can be changed into a prime (20132000003) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 27999641 + ... + 28000359.

It is an arithmetic number, because the mean of its divisors is an integer number (228122080).

Almost surely, 220132000000 is an apocalyptic number.

20132000000 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 20132000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28743382080).

20132000000 is an abundant number, since it is smaller than the sum of its proper divisors (37354764160).

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

20132000000 is an frugal number, since it uses more digits than its factorization.

20132000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 20132000000 its reverse (23102), we get a palindrome (20132023102).

The spelling of 20132000000 in words is "twenty billion, one hundred thirty-two million", and thus it is an aban number.