Search a number
-
+
12947011 = 711168143
BaseRepresentation
bin110001011000…
…111001000011
3220100202221221
4301120321003
511303301021
61141255511
7215022250
oct61307103
926322857
1012947011
117343310
124404597
1328b406c
141a10427
15120b241
hexc58e43

12947011 has 8 divisors (see below), whose sum is σ = 16141824. Its totient is φ = 10088520.

The previous prime is 12946991. The next prime is 12947027. The reversal of 12947011 is 11074921.

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 12947011 - 27 = 12946883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12947041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83995 + ... + 84148.

It is an arithmetic number, because the mean of its divisors is an integer number (2017728).

Almost surely, 212947011 is an apocalyptic number.

12947011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12947011 is a deficient number, since it is larger than the sum of its proper divisors (3194813).

12947011 is a wasteful number, since it uses less digits than its factorization.

12947011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168161.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 12947011 is about 3598.1955199794. The cubic root of 12947011 is about 234.8135596842.

The spelling of 12947011 in words is "twelve million, nine hundred forty-seven thousand, eleven".

Divisors: 1 7 11 77 168143 1177001 1849573 12947011