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12000747 = 311363659
BaseRepresentation
bin101101110001…
…110111101011
3211120200221010
4231301313223
511033010442
61105115003
7204001413
oct55616753
924520833
1012000747
116857380
124028a63
132642445
141845643
1510c0b9c
hexb71deb

12000747 has 8 divisors (see below), whose sum is σ = 17455680. Its totient is φ = 7273160.

The previous prime is 12000739. The next prime is 12000757. The reversal of 12000747 is 74700021.

12000747 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12000747 - 23 = 12000739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181797 + ... + 181862.

It is an arithmetic number, because the mean of its divisors is an integer number (2181960).

Almost surely, 212000747 is an apocalyptic number.

12000747 is a deficient number, since it is larger than the sum of its proper divisors (5454933).

12000747 is a wasteful number, since it uses less digits than its factorization.

12000747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363673.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 12000747 is about 3464.2094336226. The cubic root of 12000747 is about 228.9475989762.

Adding to 12000747 its reverse (74700021), we get a palindrome (86700768).

The spelling of 12000747 in words is "twelve million, seven hundred forty-seven", and thus it is an aban number.

Divisors: 1 3 11 33 363659 1090977 4000249 12000747