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20054050240 = 265747239797
BaseRepresentation
bin10010101011010100…
…001000010111000000
31220202121020022020111
4102223110020113000
5312032314101430
613113535521104
71306646420530
oct225324102700
956677208214
1020054050240
118560a96844
123a78089194
131b77950723
14d835554c0
157c5895c2a
hex4ab5085c0

20054050240 has 224 divisors, whose sum is σ = 56040284160. Its totient is φ = 6692818944.

The previous prime is 20054050201. The next prime is 20054050249. The reversal of 20054050240 is 4205045002.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054050249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25161522 + ... + 25162318.

It is an arithmetic number, because the mean of its divisors is an integer number (250179840).

Almost surely, 220054050240 is an apocalyptic number.

20054050240 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 20054050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28020142080).

20054050240 is an abundant number, since it is smaller than the sum of its proper divisors (35986233920).

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

20054050240 is a wasteful number, since it uses less digits than its factorization.

20054050240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 20054050240 its reverse (4205045002), we get a palindrome (24259095242).

The spelling of 20054050240 in words is "twenty billion, fifty-four million, fifty thousand, two hundred forty".