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22790207689 = 125471816387
BaseRepresentation
bin10101001110011001…
…101111100011001001
32011211021210111122021
4111032121233203021
5333133243121224
614245241124441
71434522366124
oct251631574311
964737714567
1022790207689
119735529397
124500489721
1321c27869c2
141162abb3bb
158d5bbe1e4
hex54e66f8c9

22790207689 has 4 divisors (see below), whose sum is σ = 22792036624. Its totient is φ = 22788378756.

The previous prime is 22790207663. The next prime is 22790207717. The reversal of 22790207689 is 98670209722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22790207689 - 231 = 20642724041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22790202689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895647 + ... + 920740.

It is an arithmetic number, because the mean of its divisors is an integer number (5698009156).

Almost surely, 222790207689 is an apocalyptic number.

It is an amenable number.

22790207689 is a deficient number, since it is larger than the sum of its proper divisors (1828935).

22790207689 is a wasteful number, since it uses less digits than its factorization.

22790207689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828934.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 22790207689 in words is "twenty-two billion, seven hundred ninety million, two hundred seven thousand, six hundred eighty-nine".

Divisors: 1 12547 1816387 22790207689