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20130000000000 = 21035101161
BaseRepresentation
bin1001001001110111000010…
…11111111101010000000000
32122021102001022101202021120
410210323201133331100000
510114302220000000000
6110451332213152240
74145226110546142
oct444734137752000
978242038352246
1020130000000000
1164610a3237170
1223113b432b680
13b30335188567
144d8423726c92
1524d962be96a0
hex124ee17fd400

20130000000000 has 968 divisors, whose sum is σ = 74363670352032. Its totient is φ = 4800000000000.

The previous prime is 20129999999981. The next prime is 20130000000001. The reversal of 20130000000000 is 3102.

It is a Harshad number since it is a multiple of its sum of digits (6).

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 not an unprimeable number, because it can be changed into a prime (20130000000001) by changing a digit.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 329999999970 + ... + 330000000030.

Almost surely, 220130000000000 is an apocalyptic number.

20130000000000 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 20130000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37181835176016).

20130000000000 is an abundant number, since it is smaller than the sum of its proper divisors (54233670352032).

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

20130000000000 is an frugal number, since it uses more digits than its factorization.

20130000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

Adding to 20130000000000 its reverse (3102), we get a palindrome (20130000003102).

The spelling of 20130000000000 in words is "twenty trillion, one hundred thirty billion", and thus it is an aban number.