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12000173 = 37324329
BaseRepresentation
bin101101110001…
…101110101101
3211120200010212
4231301232231
511033001143
61105112205
7203666633
oct55615655
924520125
1012000173
1168569a9
124028665
1326420c3
141845353
1510c0918
hexb71bad

12000173 has 4 divisors (see below), whose sum is σ = 12324540. Its totient is φ = 11675808.

The previous prime is 12000133. The next prime is 12000239. The reversal of 12000173 is 37100021.

12000173 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37100021 = 75300003.

It can be written as a sum of positive squares in 2 ways, for example, as 9815689 + 2184484 = 3133^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000173 - 220 = 10951597 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 (12000133) 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, 162128 + ... + 162201.

It is an arithmetic number, because the mean of its divisors is an integer number (3081135).

Almost surely, 212000173 is an apocalyptic number.

It is an amenable number.

12000173 is a deficient number, since it is larger than the sum of its proper divisors (324367).

12000173 is an equidigital number, since it uses as much as digits as its factorization.

12000173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324366.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 12000173 is about 3464.1265854469. The cubic root of 12000173 is about 228.9439487030.

Adding to 12000173 its reverse (37100021), we get a palindrome (49100194).

The spelling of 12000173 in words is "twelve million, one hundred seventy-three", and thus it is an aban number.

Divisors: 1 37 324329 12000173