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21422114045 = 539710791997
BaseRepresentation
bin10011111100110110…
…111000010011111101
32001021221111010222022
4103330312320103331
5322333030122140
613501410125525
71355600651663
oct237466702375
961257433868
1021422114045
1190a3252392
12419a2808a5
1320351c9b37
141073112c33
15855a2d0b5
hex4fcdb84fd

21422114045 has 8 divisors (see below), whose sum is σ = 25771291224. Its totient is φ = 17094521664.

The previous prime is 21422114033. The next prime is 21422114059. The reversal of 21422114045 is 54041122412.

It can be written as a sum of positive squares in 4 ways, for example, as 868304089 + 20553809956 = 29467^2 + 143366^2 .

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 21422114045 - 214 = 21422097661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5394014 + ... + 5397983.

It is an arithmetic number, because the mean of its divisors is an integer number (3221411403).

Almost surely, 221422114045 is an apocalyptic number.

It is an amenable number.

21422114045 is a deficient number, since it is larger than the sum of its proper divisors (4349177179).

21422114045 is a wasteful number, since it uses less digits than its factorization.

21422114045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10792399.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 21422114045 its reverse (54041122412), we get a palindrome (75463236457).

The spelling of 21422114045 in words is "twenty-one billion, four hundred twenty-two million, one hundred fourteen thousand, forty-five".

Divisors: 1 5 397 1985 10791997 53959985 4284422809 21422114045