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12149173 = 29795303
BaseRepresentation
bin101110010110…
…000110110101
3211212020112101
4232112012311
511102233143
61112222101
7205160221
oct56260665
924766471
1012149173
116948943
12409a931
132694b7a
141883781
1510eeb4d
hexb961b5

12149173 has 8 divisors (see below), whose sum is σ = 12729600. Its totient is φ = 11579568.

The previous prime is 12149141. The next prime is 12149183. The reversal of 12149173 is 37194121.

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 12149173 - 25 = 12149141 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 (12149183) 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, 361 + ... + 4942.

It is an arithmetic number, because the mean of its divisors is an integer number (1591200).

Almost surely, 212149173 is an apocalyptic number.

It is an amenable number.

12149173 is a deficient number, since it is larger than the sum of its proper divisors (580427).

12149173 is an equidigital number, since it uses as much as digits as its factorization.

12149173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411.

The product of its digits is 1512, while the sum is 28.

The square root of 12149173 is about 3485.5663815225. The cubic root of 12149173 is about 229.8876136499.

It can be divided in two parts, 121 and 49173, that added together give a palindrome (49294).

The spelling of 12149173 in words is "twelve million, one hundred forty-nine thousand, one hundred seventy-three".

Divisors: 1 29 79 2291 5303 153787 418937 12149173