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223869253 = 1631373431
BaseRepresentation
bin11010101011111…
…11100101000101
3120121020201212211
431111333211011
5424302304003
634114143421
75355600016
oct1525774505
9517221784
10223869253
11105406313
1262b81b71
13374c391a
1421a3700d
15149c196d
hexd57f945

223869253 has 4 divisors (see below), whose sum is σ = 225242848. Its totient is φ = 222495660.

The previous prime is 223869221. The next prime is 223869263. The reversal of 223869253 is 352968322.

It is a happy number.

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 223869253 - 25 = 223869221 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 (223869263) 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, 686553 + ... + 686878.

It is an arithmetic number, because the mean of its divisors is an integer number (56310712).

Almost surely, 2223869253 is an apocalyptic number.

It is an amenable number.

223869253 is a deficient number, since it is larger than the sum of its proper divisors (1373595).

223869253 is a wasteful number, since it uses less digits than its factorization.

223869253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373594.

The product of its digits is 155520, while the sum is 40.

The square root of 223869253 is about 14962.2609588257. The cubic root of 223869253 is about 607.1996092055.

The spelling of 223869253 in words is "two hundred twenty-three million, eight hundred sixty-nine thousand, two hundred fifty-three".

Divisors: 1 163 1373431 223869253