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22438201117 = 29977976609
BaseRepresentation
bin10100111001011010…
…111100011100011101
32010220202102201101211
4110321122330130131
5331423134413432
614150304304421
71423016363653
oct247132743435
963822381354
1022438201117
119574863672
124422612111
13216787a3a7
14112c04add3
158b4d3ad47
hex5396bc71d

22438201117 has 8 divisors (see below), whose sum is σ = 23451233400. Its totient is φ = 21441122304.

The previous prime is 22438201099. The next prime is 22438201151. The reversal of 22438201117 is 71110283422.

It can be written as a sum of positive squares in 4 ways, for example, as 2946969796 + 19491231321 = 54286^2 + 139611^2 .

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 22438201117 - 227 = 22303983389 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 (22438201217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985492 + ... + 3991117.

It is an arithmetic number, because the mean of its divisors is an integer number (2931404175).

Almost surely, 222438201117 is an apocalyptic number.

It is an amenable number.

22438201117 is a deficient number, since it is larger than the sum of its proper divisors (1013032283).

22438201117 is an equidigital number, since it uses as much as digits as its factorization.

22438201117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976735.

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 22438201117 its reverse (71110283422), we get a palindrome (93548484539).

The spelling of 22438201117 in words is "twenty-two billion, four hundred thirty-eight million, two hundred one thousand, one hundred seventeen".

Divisors: 1 29 97 2813 7976609 231321661 773731073 22438201117