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223422613 = 3753113933
BaseRepresentation
bin11010101000100…
…10100010010101
3120120102001012121
431110102202111
5424144010423
634100415541
75352026611
oct1524224225
9516361177
10223422613
11105130797
12629a75b1
133739853b
142195c341
151493445d
hexd512895

223422613 has 8 divisors (see below), whose sum is σ = 233792568. Its totient is φ = 213280704.

The previous prime is 223422601. The next prime is 223422649. The reversal of 223422613 is 316224322.

It can be written as a sum of positive squares in 4 ways, for example, as 122279364 + 101143249 = 11058^2 + 10057^2 .

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 223422613 - 25 = 223422581 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 (223425613) 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, 55006 + ... + 58927.

It is an arithmetic number, because the mean of its divisors is an integer number (29224071).

Almost surely, 2223422613 is an apocalyptic number.

It is an amenable number.

223422613 is a deficient number, since it is larger than the sum of its proper divisors (10369955).

223422613 is a wasteful number, since it uses less digits than its factorization.

223422613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114023.

The product of its digits is 3456, while the sum is 25.

The square root of 223422613 is about 14947.3279551899. The cubic root of 223422613 is about 606.7955337817.

Adding to 223422613 its reverse (316224322), we get a palindrome (539646935).

The spelling of 223422613 in words is "two hundred twenty-three million, four hundred twenty-two thousand, six hundred thirteen".

Divisors: 1 37 53 1961 113933 4215521 6038449 223422613