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20027024245 = 519320753393
BaseRepresentation
bin10010101001101101…
…000010001101110101
31220200201101020112201
4102221231002031311
5312003404233440
613111132344501
71306200616534
oct225155021565
956621336481
1020027024245
118547807808
123a6b015131
131b7217a307
14d7db1c31b
157c330819a
hex4a9b42375

20027024245 has 8 divisors (see below), whose sum is σ = 24156950616. Its totient is φ = 15938605056.

The previous prime is 20027024231. The next prime is 20027024249. The reversal of 20027024245 is 54242072002.

It can be written as a sum of positive squares in 4 ways, for example, as 4225780036 + 15801244209 = 65006^2 + 125703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20027024245 - 29 = 20027023733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20027024249) 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 7 ways as a sum of consecutive naturals, for example, 10375732 + ... + 10377661.

It is an arithmetic number, because the mean of its divisors is an integer number (3019618827).

Almost surely, 220027024245 is an apocalyptic number.

It is an amenable number.

20027024245 is a deficient number, since it is larger than the sum of its proper divisors (4129926371).

20027024245 is a wasteful number, since it uses less digits than its factorization.

20027024245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20753591.

The product of its (nonzero) digits is 8960, while the sum is 28.

Adding to 20027024245 its reverse (54242072002), we get a palindrome (74269096247).

The spelling of 20027024245 in words is "twenty billion, twenty-seven million, twenty-four thousand, two hundred forty-five".

Divisors: 1 5 193 965 20753393 103766965 4005404849 20027024245