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224029961 = 1719368281
BaseRepresentation
bin11010101101001…
…10110100001001
3120121112220022222
431112212310021
5424322424321
634121423425
75360136401
oct1526466411
9517486288
10224029961
11105506031
126303ab75
133754bb0c
1421a79801
1514a043ab
hexd5a6d09

224029961 has 8 divisors (see below), whose sum is σ = 238440744. Its totient is φ = 209756160.

The previous prime is 224029951. The next prime is 224029979. The reversal of 224029961 is 169920422.

224029961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11424400 + 212605561 = 3380^2 + 14581^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 224029961 - 222 = 219835657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (224029951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30860 + ... + 37421.

It is an arithmetic number, because the mean of its divisors is an integer number (29805093).

Almost surely, 2224029961 is an apocalyptic number.

It is an amenable number.

224029961 is a deficient number, since it is larger than the sum of its proper divisors (14410783).

224029961 is a wasteful number, since it uses less digits than its factorization.

224029961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68491.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 224029961 is about 14967.6304403870. The cubic root of 224029961 is about 607.3448703234.

The spelling of 224029961 in words is "two hundred twenty-four million, twenty-nine thousand, nine hundred sixty-one".

Divisors: 1 17 193 3281 68281 1160777 13178233 224029961