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229020449 = 7132124767
BaseRepresentation
bin11011010011010…
…01001100100001
3120221221102222212
431221221030201
5432112123244
634420411505
75450433050
oct1551511441
9527842885
10229020449
111083044a9
1264846b95
13385a8478
14225b8397
151518cd9e
hexda69321

229020449 has 8 divisors (see below), whose sum is σ = 261946368. Its totient is φ = 196146720.

The previous prime is 229020443. The next prime is 229020479. The reversal of 229020449 is 944020922.

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

It is a de Polignac number, because none of the positive numbers 2k-229020449 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 (229020443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3137 + ... + 21630.

It is an arithmetic number, because the mean of its divisors is an integer number (32743296).

Almost surely, 2229020449 is an apocalyptic number.

It is an amenable number.

229020449 is a deficient number, since it is larger than the sum of its proper divisors (32925919).

229020449 is a wasteful number, since it uses less digits than its factorization.

229020449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26095.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 229020449 is about 15133.4215893168. The cubic root of 229020449 is about 611.8215274437.

The spelling of 229020449 in words is "two hundred twenty-nine million, twenty thousand, four hundred forty-nine".

Divisors: 1 7 1321 9247 24767 173369 32717207 229020449