Search a number
-
+
12147246868 = 2217871699391
BaseRepresentation
bin10110101000000100…
…00100011100010100
31011100120012002002011
423110002010130110
5144334143344433
65325205354004
7610006615621
oct132402043424
934316162064
1012147246868
1151738933a9
122430108904
1311b780b553
148333cb348
154b16593cd
hex2d4084714

12147246868 has 12 divisors (see below), whose sum is σ = 21269590272. Its totient is φ = 6070221080.

The previous prime is 12147246829. The next prime is 12147246899. The reversal of 12147246868 is 86864274121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842548 + ... + 856843.

It is an arithmetic number, because the mean of its divisors is an integer number (1772465856).

Almost surely, 212147246868 is an apocalyptic number.

It is an amenable number.

12147246868 is a deficient number, since it is larger than the sum of its proper divisors (9122343404).

12147246868 is a wasteful number, since it uses less digits than its factorization.

12147246868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701182 (or 1701180 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 49.

The spelling of 12147246868 in words is "twelve billion, one hundred forty-seven million, two hundred forty-six thousand, eight hundred sixty-eight".

Divisors: 1 2 4 1787 3574 7148 1699391 3398782 6797564 3036811717 6073623434 12147246868