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222300013 = 1317100001
BaseRepresentation
bin11010100000000…
…00011101101101
3120111022000021211
431100000131231
5423402100023
634020354421
75336342665
oct1520003555
9514260254
10222300013
11104534321
1262545a11
1337094590
14217491a5
15147b1a0d
hexd40076d

222300013 has 4 divisors (see below), whose sum is σ = 239400028. Its totient is φ = 205200000.

The previous prime is 222300011. The next prime is 222300047. The reversal of 222300013 is 310003222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109558089 + 112741924 = 10467^2 + 10618^2 .

It is a cyclic number.

It is not a de Polignac number, because 222300013 - 21 = 222300011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 17100001 = 222300013 / (2 + 2 + 2 + 3 + 0 + 0 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222299966 and 222300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222300011) 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, 8549988 + ... + 8550013.

It is an arithmetic number, because the mean of its divisors is an integer number (59850007).

Almost surely, 2222300013 is an apocalyptic number.

It is an amenable number.

222300013 is a deficient number, since it is larger than the sum of its proper divisors (17100015).

222300013 is a wasteful number, since it uses less digits than its factorization.

222300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100014.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 222300013 is about 14909.7288037040. The cubic root of 222300013 is about 605.7775336440. Note that the first 3 decimals are identical.

Adding to 222300013 its reverse (310003222), we get a palindrome (532303235).

The spelling of 222300013 in words is "two hundred twenty-two million, three hundred thousand, thirteen".

Divisors: 1 13 17100001 222300013