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20348103200 = 25521941103317
BaseRepresentation
bin10010111100110101…
…110110101000100000
31221112002112202001212
4102330311312220200
5313133103300300
613203042245252
71320150011015
oct227465665040
957462482055
1020348103200
1186a1a79117
123b3a656828
131bc3848669
14db061b70c
157e15cc935
hex4bcd76a20

20348103200 has 288 divisors, whose sum is σ = 54255277440. Its totient is φ = 7426252800.

The previous prime is 20348103187. The next prime is 20348103203. The reversal of 20348103200 is 230184302.

It is not an unprimeable number, because it can be changed into a prime (20348103203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64189442 + ... + 64189758.

It is an arithmetic number, because the mean of its divisors is an integer number (188386380).

Almost surely, 220348103200 is an apocalyptic number.

20348103200 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 20348103200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27127638720).

20348103200 is an abundant number, since it is smaller than the sum of its proper divisors (33907174240).

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

20348103200 is a wasteful number, since it uses less digits than its factorization.

20348103200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20348103200 its reverse (230184302), we get a palindrome (20578287502).

The spelling of 20348103200 in words is "twenty billion, three hundred forty-eight million, one hundred three thousand, two hundred".