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223204013 = 435190791
BaseRepresentation
bin11010100110111…
…01001010101101
3120112222221100022
431103131022231
5424120012023
634052011525
75350126364
oct1523351255
9515887308
10223204013
11104aa152a
1262900ba5
133731cba6
14219027db
15148de7c8
hexd4dd2ad

223204013 has 4 divisors (see below), whose sum is σ = 228394848. Its totient is φ = 218013180.

The previous prime is 223203991. The next prime is 223204027. The reversal of 223204013 is 310402322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223204013 - 210 = 223202989 is a prime.

It is a super-3 number, since 3×2232040133 (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 = 223203982 and 223204000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223206013) 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, 2595353 + ... + 2595438.

It is an arithmetic number, because the mean of its divisors is an integer number (57098712).

Almost surely, 2223204013 is an apocalyptic number.

It is an amenable number.

223204013 is a deficient number, since it is larger than the sum of its proper divisors (5190835).

223204013 is an equidigital number, since it uses as much as digits as its factorization.

223204013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190834.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 223204013 is about 14940.0138219481. The cubic root of 223204013 is about 606.5975699525.

Adding to 223204013 its reverse (310402322), we get a palindrome (533606335).

The spelling of 223204013 in words is "two hundred twenty-three million, two hundred four thousand, thirteen".

Divisors: 1 43 5190791 223204013