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22023311213 = 281611312821
BaseRepresentation
bin10100100000101100…
…010000111101101101
32002211211202010110002
4110200230100331231
5330100431424323
614041203554045
71406521025261
oct244054207555
962754663402
1022023311213
119381648752
12432768b925
1320cc9245c7
1410ccccc0a1
1588d6d5828
hex520b10f6d

22023311213 has 8 divisors (see below), whose sum is σ = 22107025656. Its totient is φ = 21939635200.

The previous prime is 22023311209. The next prime is 22023311231. The reversal of 22023311213 is 31211332022.

It can be written as a sum of positive squares in 4 ways, for example, as 1195914724 + 20827396489 = 34582^2 + 144317^2 .

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 22023311213 - 22 = 22023311209 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 (22023311263) 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, 1711343 + ... + 1724163.

It is an arithmetic number, because the mean of its divisors is an integer number (2763378207).

Almost surely, 222023311213 is an apocalyptic number.

It is an amenable number.

22023311213 is a deficient number, since it is larger than the sum of its proper divisors (83714443).

22023311213 is a wasteful number, since it uses less digits than its factorization.

22023311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19215.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22023311213 its reverse (31211332022), we get a palindrome (53234643235).

The spelling of 22023311213 in words is "twenty-two billion, twenty-three million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 281 6113 12821 1717753 3602701 78374773 22023311213