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223130423 = 1713125319
BaseRepresentation
bin11010100110010…
…11001100110111
3120112212012101202
431103023030313
5424110133143
634050243115
75346402005
oct1523131467
9515765352
10223130423
11104a5120a
126288649b
13372c5549
14218c3a75
15148c7ab8
hexd4cb337

223130423 has 4 divisors (see below), whose sum is σ = 236255760. Its totient is φ = 210005088.

The previous prime is 223130377. The next prime is 223130431. The reversal of 223130423 is 324031322.

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

It is a cyclic number.

It is not a de Polignac number, because 223130423 - 214 = 223114039 is a prime.

It is a super-3 number, since 3×2231304233 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223130395 and 223130404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223130473) 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, 6562643 + ... + 6562676.

It is an arithmetic number, because the mean of its divisors is an integer number (59063940).

Almost surely, 2223130423 is an apocalyptic number.

223130423 is a deficient number, since it is larger than the sum of its proper divisors (13125337).

223130423 is a wasteful number, since it uses less digits than its factorization.

223130423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13125336.

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

The square root of 223130423 is about 14937.5507697882. The cubic root of 223130423 is about 606.5308978808.

Adding to 223130423 its reverse (324031322), we get a palindrome (547161745).

The spelling of 223130423 in words is "two hundred twenty-three million, one hundred thirty thousand, four hundred twenty-three".

Divisors: 1 17 13125319 223130423