Search a number
-
+
12975001 = 13998077
BaseRepresentation
bin110001011111…
…101110011001
3220102012100121
4301133232121
511310200001
61142033241
7215166664
oct61375631
926365317
1012975001
117362346
124418821
1328c3a20
141a1a6db
1512146a1
hexc5fb99

12975001 has 4 divisors (see below), whose sum is σ = 13973092. Its totient is φ = 11976912.

The previous prime is 12974993. The next prime is 12975031. The reversal of 12975001 is 10057921.

12975001 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3519376 + 9455625 = 1876^2 + 3075^2 .

It is a cyclic number.

It is not a de Polignac number, because 12975001 - 23 = 12974993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12975031) 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, 499026 + ... + 499051.

It is an arithmetic number, because the mean of its divisors is an integer number (3493273).

Almost surely, 212975001 is an apocalyptic number.

It is an amenable number.

12975001 is a deficient number, since it is larger than the sum of its proper divisors (998091).

12975001 is an equidigital number, since it uses as much as digits as its factorization.

12975001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998090.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 12975001 is about 3602.0828696742. The cubic root of 12975001 is about 234.9826515034.

The spelling of 12975001 in words is "twelve million, nine hundred seventy-five thousand, one".

Divisors: 1 13 998077 12975001