[go: up one dir, main page]

Search a number
-
+
12952903 = 18171563
BaseRepresentation
bin110001011010…
…010101000111
3220101002001011
4301122111013
511303443103
61141343051
7215045365
oct61322507
926332034
1012952903
117347787
124407a87
1328b6952
141a12635
15120cd6d
hexc5a547

12952903 has 4 divisors (see below), whose sum is σ = 13024648. Its totient is φ = 12881160.

The previous prime is 12952853. The next prime is 12952921. The reversal of 12952903 is 30925921.

12952903 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 30925921 = 132378917.

It is a cyclic number.

It is not a de Polignac number, because 12952903 - 221 = 10855751 is a prime.

It is a super-2 number, since 2×129529032 = 335555392254818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12952943) 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, 35601 + ... + 35962.

It is an arithmetic number, because the mean of its divisors is an integer number (3256162).

Almost surely, 212952903 is an apocalyptic number.

12952903 is a deficient number, since it is larger than the sum of its proper divisors (71745).

12952903 is an equidigital number, since it uses as much as digits as its factorization.

12952903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71744.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 12952903 is about 3599.0141705750. The cubic root of 12952903 is about 234.8491743826.

The spelling of 12952903 in words is "twelve million, nine hundred fifty-two thousand, nine hundred three".

Divisors: 1 181 71563 12952903