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12000449 = 33893541
BaseRepresentation
bin101101110001…
…110011000001
3211120200112002
4231301303001
511033003244
61105113345
7204000506
oct55616301
924520462
1012000449
11685712a
124028855
132642276
1418454ad
1510c0a4e
hexb71cc1

12000449 has 4 divisors (see below), whose sum is σ = 12007380. Its totient is φ = 11993520.

The previous prime is 12000433. The next prime is 12000467. The reversal of 12000449 is 94400021.

12000449 is digitally balanced in base 2 and base 3, because in such bases 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 a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9042049 + 2958400 = 3007^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000449 - 24 = 12000433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000449.

It is not an unprimeable number, because it can be changed into a prime (12000409) 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, 1619 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (3001845).

Almost surely, 212000449 is an apocalyptic number.

It is an amenable number.

12000449 is a deficient number, since it is larger than the sum of its proper divisors (6931).

12000449 is an equidigital number, since it uses as much as digits as its factorization.

12000449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6930.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12000449 is about 3464.1664220993. The cubic root of 12000449 is about 228.9457039011.

The spelling of 12000449 in words is "twelve million, four hundred forty-nine", and thus it is an aban number.

Divisors: 1 3389 3541 12000449