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22330220213 = 73190031459
BaseRepresentation
bin10100110010111111…
…000001111010110101
32010122020020201110002
4110302333001322311
5331213014021323
614131450041045
71420235511560
oct246277017265
963566221402
1022330220213
119519910a54
1243b2419185
13214b3a1072
14111b97d4d7
158aa60b828
hex532fc1eb5

22330220213 has 4 divisors (see below), whose sum is σ = 25520251680. Its totient is φ = 19140188748.

The previous prime is 22330220191. The next prime is 22330220219. The reversal of 22330220213 is 31202203322.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31202203322 = 215601101661.

It is a cyclic number.

It is not a de Polignac number, because 22330220213 - 228 = 22061784757 is a prime.

It is a super-2 number, since 2×223302202132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22330220219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595015723 + ... + 1595015736.

It is an arithmetic number, because the mean of its divisors is an integer number (6380062920).

Almost surely, 222330220213 is an apocalyptic number.

It is an amenable number.

22330220213 is a deficient number, since it is larger than the sum of its proper divisors (3190031467).

22330220213 is an equidigital number, since it uses as much as digits as its factorization.

22330220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190031466.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22330220213 its reverse (31202203322), we get a palindrome (53532423535).

The spelling of 22330220213 in words is "twenty-two billion, three hundred thirty million, two hundred twenty thousand, two hundred thirteen".

Divisors: 1 7 3190031459 22330220213