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20313030000 = 243544311571
BaseRepresentation
bin10010111010110000…
…000011110101110000
31221102122112211200110
4102322300003311300
5313100113430000
613155350421320
71316242622544
oct227260036560
957378484613
1020313030000
1186841a30aa
123b2a961840
131bb94b84a3
14da9acba24
157dd4a0850
hex4bac03d70

20313030000 has 200 divisors, whose sum is σ = 65767147776. Its totient is φ = 5400800000.

The previous prime is 20313029987. The next prime is 20313030011. The reversal of 20313030000 is 3031302.

It is a happy number.

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 (12).

It is a congruent number.

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, 12929215 + ... + 12930785.

Almost surely, 220313030000 is an apocalyptic number.

20313030000 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 20313030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32883573888).

20313030000 is an abundant number, since it is smaller than the sum of its proper divisors (45454117776).

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

20313030000 is a wasteful number, since it uses less digits than its factorization.

20313030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 20313030000 its reverse (3031302), we get a palindrome (20316061302).

The spelling of 20313030000 in words is "twenty billion, three hundred thirteen million, thirty thousand".