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12990467 = 74993719
BaseRepresentation
bin110001100011…
…100000000011
3220102222120102
4301203200003
511311143332
61142233015
7215263040
oct61434003
926388512
1012990467
117372a26
12442576b
1328caa89
141a221c7
151219062
hexc63803

12990467 has 8 divisors (see below), whose sum is σ = 14880000. Its totient is φ = 11109384.

The previous prime is 12990451. The next prime is 12990473. The reversal of 12990467 is 76409921.

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 12990467 - 24 = 12990451 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12990467.

It is not an unprimeable number, because it can be changed into a prime (12990427) 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, 1634 + ... + 5352.

It is an arithmetic number, because the mean of its divisors is an integer number (1860000).

Almost surely, 212990467 is an apocalyptic number.

12990467 is a deficient number, since it is larger than the sum of its proper divisors (1889533).

12990467 is an equidigital number, since it uses as much as digits as its factorization.

12990467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 12990467 is about 3604.2290437762. The cubic root of 12990467 is about 235.0759796569.

The spelling of 12990467 in words is "twelve million, nine hundred ninety thousand, four hundred sixty-seven".

Divisors: 1 7 499 3493 3719 26033 1855781 12990467