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229913849 = 1120901259
BaseRepresentation
bin11011011010000…
…11010011111001
3121000121211111202
431231003103321
5432324220344
634451503545
75461143524
oct1555032371
9530554452
10229913849
11108864750
1264bb7bb5
133882bcc9
142276bbbb
15152b794e
hexdb434f9

229913849 has 4 divisors (see below), whose sum is σ = 250815120. Its totient is φ = 209012580.

The previous prime is 229913839. The next prime is 229913857. The reversal of 229913849 is 948319922.

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 a de Polignac number, because none of the positive numbers 2k-229913849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229913839) 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, 10450619 + ... + 10450640.

It is an arithmetic number, because the mean of its divisors is an integer number (62703780).

Almost surely, 2229913849 is an apocalyptic number.

It is an amenable number.

229913849 is a deficient number, since it is larger than the sum of its proper divisors (20901271).

229913849 is a wasteful number, since it uses less digits than its factorization.

229913849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20901270.

The product of its digits is 279936, while the sum is 47.

The square root of 229913849 is about 15162.9103077213. The cubic root of 229913849 is about 612.6160593066.

The spelling of 229913849 in words is "two hundred twenty-nine million, nine hundred thirteen thousand, eight hundred forty-nine".

Divisors: 1 11 20901259 229913849