Search a number
-
+
20071214512 = 247317184259
BaseRepresentation
bin10010101100010101…
…100110110110110000
31220210210112100012021
4102230111212312300
5312101212331022
613115351441224
71310245336246
oct225425466660
956723470167
1020071214512
11856a74a598
123a81986214
131b7b3801bb
14d85942796
157c71367c7
hex4ac566db0

20071214512 has 20 divisors (see below), whose sum is σ = 39420692440. Its totient is φ = 9898132608.

The previous prime is 20071214507. The next prime is 20071214531. The reversal of 20071214512 is 21541217002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8590962 + ... + 8593297.

It is an arithmetic number, because the mean of its divisors is an integer number (1971034622).

Almost surely, 220071214512 is an apocalyptic number.

It is an amenable number.

20071214512 is a deficient number, since it is larger than the sum of its proper divisors (19349477928).

20071214512 is a wasteful number, since it uses less digits than its factorization.

20071214512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17184340 (or 17184334 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The spelling of 20071214512 in words is "twenty billion, seventy-one million, two hundred fourteen thousand, five hundred twelve".

Divisors: 1 2 4 8 16 73 146 292 584 1168 17184259 34368518 68737036 137474072 274948144 1254450907 2508901814 5017803628 10035607256 20071214512