Search a number
-
+
12803604678 = 2321993574429
BaseRepresentation
bin10111110110010011…
…11000000011000110
31020001022020111201200
423323021320003012
5202210210322203
65514253403330
7632166562344
oct137311700306
936038214650
1012803604678
115480334777
122593a99546
1312907aa357
14896644994
154ee0aa9a3
hex2fb2780c6

12803604678 has 24 divisors (see below), whose sum is σ = 27880554000. Its totient is φ = 4246420464.

The previous prime is 12803604673. The next prime is 12803604679. The reversal of 12803604678 is 87640630821.

12803604678 is a `hidden beast` number, since 1 + 280 + 360 + 4 + 6 + 7 + 8 = 666.

12803604678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12803604673) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1783633 + ... + 1790796.

It is an arithmetic number, because the mean of its divisors is an integer number (1161689750).

Almost surely, 212803604678 is an apocalyptic number.

12803604678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12803604678 is an abundant number, since it is smaller than the sum of its proper divisors (15076949322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12803604678 is a wasteful number, since it uses less digits than its factorization.

12803604678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574636 (or 3574633 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 12803604678 in words is "twelve billion, eight hundred three million, six hundred four thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 9 18 199 398 597 1194 1791 3582 3574429 7148858 10723287 21446574 32169861 64339722 711311371 1422622742 2133934113 4267868226 6401802339 12803604678