Search a number
-
+
20142918944 = 256211101347
BaseRepresentation
bin10010110000100111…
…001000110100100000
31220222210110022011222
4102300213020310200
5312223041401234
613130432354212
71312105662131
oct226047106440
956883408158
1020142918944
1185a7175155
123aa19a5968
131b90197765
14d91289c88
157cd59c42e
hex4b09c8d20

20142918944 has 24 divisors (see below), whose sum is σ = 39663147888. Its totient is φ = 10069738560.

The previous prime is 20142918937. The next prime is 20142918967. The reversal of 20142918944 is 44981924102.

It is a junction number, because it is equal to n+sod(n) for n = 20142918895 and 20142918904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148079 + ... + 249425.

It is an arithmetic number, because the mean of its divisors is an integer number (1652631162).

Almost surely, 220142918944 is an apocalyptic number.

It is an amenable number.

20142918944 is a deficient number, since it is larger than the sum of its proper divisors (19520228944).

20142918944 is a wasteful number, since it uses less digits than its factorization.

20142918944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107568 (or 107560 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 20142918944 in words is "twenty billion, one hundred forty-two million, nine hundred eighteen thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 32 6211 12422 24844 49688 99376 101347 198752 202694 405388 810776 1621552 3243104 629466217 1258932434 2517864868 5035729736 10071459472 20142918944