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223132123 = 1713125419
BaseRepresentation
bin11010100110010…
…11100111011011
3120112212021201201
431103023213123
5424110211443
634050255031
75346406654
oct1523134733
9515767651
10223132123
11104a52515
1262887477
13372c6256
14218c452b
15148c834d
hexd4cb9db

223132123 has 4 divisors (see below), whose sum is σ = 236257560. Its totient is φ = 210006688.

The previous prime is 223132069. The next prime is 223132139. The reversal of 223132123 is 321231322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321231322 = 2160615661.

It is a cyclic number.

It is not a de Polignac number, because 223132123 - 213 = 223123931 is a prime.

It is a super-3 number, since 3×2231321233 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223132123.

It is not an unprimeable number, because it can be changed into a prime (223132183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6562693 + ... + 6562726.

It is an arithmetic number, because the mean of its divisors is an integer number (59064390).

Almost surely, 2223132123 is an apocalyptic number.

223132123 is a deficient number, since it is larger than the sum of its proper divisors (13125437).

223132123 is a wasteful number, since it uses less digits than its factorization.

223132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13125436.

The product of its digits is 432, while the sum is 19.

The square root of 223132123 is about 14937.6076732521. The cubic root of 223132123 is about 606.5324382353.

Adding to 223132123 its reverse (321231322), we get a palindrome (544363445).

The spelling of 223132123 in words is "two hundred twenty-three million, one hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 17 13125419 223132123