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12484489 = 25149739
BaseRepresentation
bin101111100111…
…111110001001
3212111021111111
4233213332021
511144000424
61123330321
7211054633
oct57477611
925437444
1012484489
117057866
1242209a1
132781694
14192da53
151169194
hexbe7f89

12484489 has 4 divisors (see below), whose sum is σ = 12534480. Its totient is φ = 12434500.

The previous prime is 12484487. The next prime is 12484499. The reversal of 12484489 is 98448421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98448421 = 412401181.

It is a cyclic number.

It is not a de Polignac number, because 12484489 - 21 = 12484487 is a prime.

It is a super-2 number, since 2×124844892 = 311724931182242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12484487) 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, 24619 + ... + 25120.

It is an arithmetic number, because the mean of its divisors is an integer number (3133620).

Almost surely, 212484489 is an apocalyptic number.

It is an amenable number.

12484489 is a deficient number, since it is larger than the sum of its proper divisors (49991).

12484489 is an equidigital number, since it uses as much as digits as its factorization.

12484489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49990.

The product of its digits is 73728, while the sum is 40.

The square root of 12484489 is about 3533.3396383592. The cubic root of 12484489 is about 231.9834077016.

The spelling of 12484489 in words is "twelve million, four hundred eighty-four thousand, four hundred eighty-nine".

Divisors: 1 251 49739 12484489