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223613243 = 7157920231
BaseRepresentation
bin11010101010000…
…01000100111011
3120120202201200222
431111001010323
5424221110433
634104450255
75353452440
oct1525010473
9516681628
10223613243
11105250a37
1262a7998b
1337434239
14219ab9c7
1514970b98
hexd54113b

223613243 has 8 divisors (see below), whose sum is σ = 255732480. Its totient is φ = 191537640.

The previous prime is 223613231. The next prime is 223613249. The reversal of 223613243 is 342316322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223613243 - 26 = 223613179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223613249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938 + ... + 21168.

It is an arithmetic number, because the mean of its divisors is an integer number (31966560).

Almost surely, 2223613243 is an apocalyptic number.

223613243 is a deficient number, since it is larger than the sum of its proper divisors (32119237).

223613243 is a wasteful number, since it uses less digits than its factorization.

223613243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21817.

The product of its digits is 5184, while the sum is 26.

The square root of 223613243 is about 14953.7033205825. The cubic root of 223613243 is about 606.9680626470.

Adding to 223613243 its reverse (342316322), we get a palindrome (565929565).

The spelling of 223613243 in words is "two hundred twenty-three million, six hundred thirteen thousand, two hundred forty-three".

Divisors: 1 7 1579 11053 20231 141617 31944749 223613243