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229180897 = 113233739
BaseRepresentation
bin11011010100100…
…00010111100001
3120222020121002101
431222100113201
5432132242042
634424050401
75452001611
oct1552202741
9528217071
10229180897
11108404000
1264903a01
13386334ca
142261aa41
15151c06b7
hexda905e1

229180897 has 16 divisors (see below), whose sum is σ = 253506240. Its totient is φ = 207171360.

The previous prime is 229180879. The next prime is 229180909. The reversal of 229180897 is 798081922.

It is not a de Polignac number, because 229180897 - 27 = 229180769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229180867) 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 15 ways as a sum of consecutive naturals, for example, 309754 + ... + 310492.

It is an arithmetic number, because the mean of its divisors is an integer number (15844140).

Almost surely, 2229180897 is an apocalyptic number.

It is an amenable number.

229180897 is a deficient number, since it is larger than the sum of its proper divisors (24325343).

229180897 is an equidigital number, since it uses as much as digits as its factorization.

229180897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 229180897 is about 15138.7217756322. The cubic root of 229180897 is about 611.9643714930.

The spelling of 229180897 in words is "two hundred twenty-nine million, one hundred eighty thousand, eight hundred ninety-seven".

Divisors: 1 11 121 233 739 1331 2563 8129 28193 89419 172187 310123 983609 1894057 20834627 229180897