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20316888000 = 2632531811559
BaseRepresentation
bin10010111010111110…
…110001101111000000
31221102220210211212100
4102322332301233000
5313102110404000
613200005230400
71316320461423
oct227276615700
957386724770
1020316888000
118686398732
123b30102400
131bba239526
14daa4139ba
157dd9b3a00
hex4bafb1bc0

20316888000 has 336 divisors, whose sum is σ = 73125299520. Its totient is φ = 5384448000.

The previous prime is 20316887999. The next prime is 20316888019. The reversal of 20316888000 is 88861302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13031221 + ... + 13032779.

It is an arithmetic number, because the mean of its divisors is an integer number (217634820).

Almost surely, 220316888000 is an apocalyptic number.

20316888000 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 20316888000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36562649760).

20316888000 is an abundant number, since it is smaller than the sum of its proper divisors (52808411520).

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

20316888000 is a wasteful number, since it uses less digits than its factorization.

20316888000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 20316888000 in words is "twenty billion, three hundred sixteen million, eight hundred eighty-eight thousand".