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20010030000 = 24354739137
BaseRepresentation
bin10010101000101100…
…001101001110110000
31220122112101211211020
4102220230031032300
5311440031430000
613105324215440
71305603306612
oct225054151660
956575354736
1020010030000
11853915a784
123a6539a580
131b6b7aa04c
14d7b776db2
157c1a9cba0
hex4a8b0d3b0

20010030000 has 200 divisors, whose sum is σ = 65487074928. Its totient is φ = 5262336000.

The previous prime is 20010029999. The next prime is 20010030011. The reversal of 20010030000 is 3001002.

It is a tau number, because it is divible by the number of its divisors (200).

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 an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2185432 + ... + 2194568.

Almost surely, 220010030000 is an apocalyptic number.

20010030000 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 20010030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32743537464).

20010030000 is an abundant number, since it is smaller than the sum of its proper divisors (45477044928).

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

20010030000 is an equidigital number, since it uses as much as digits as its factorization.

20010030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241 (or 9220 counting only the distinct ones).

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

Adding to 20010030000 its reverse (3001002), we get a palindrome (20013031002).

The spelling of 20010030000 in words is "twenty billion, ten million, thirty thousand".