Search a number
-
+
12393988269 = 313317794571
BaseRepresentation
bin10111000101011110…
…10100000010101101
31011222202110211122120
423202233110002231
5200340330111034
65405502103153
7616064106405
oct134257240255
934882424576
1012393988269
1152900a0913
12249a87aab9
13122697c990
14858099805
154c8147c49
hex2e2bd40ad

12393988269 has 8 divisors (see below), whose sum is σ = 17796496032. Its totient is φ = 7627069680.

The previous prime is 12393988267. The next prime is 12393988279. The reversal of 12393988269 is 96288939321.

12393988269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12393988269 - 21 = 12393988267 is a prime.

It is a super-2 number, since 2×123939882692 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12393988267) 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 7 ways as a sum of consecutive naturals, for example, 158897247 + ... + 158897324.

It is an arithmetic number, because the mean of its divisors is an integer number (2224562004).

Almost surely, 212393988269 is an apocalyptic number.

It is an amenable number.

12393988269 is a deficient number, since it is larger than the sum of its proper divisors (5402507763).

12393988269 is a wasteful number, since it uses less digits than its factorization.

12393988269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317794587.

The product of its digits is 10077696, while the sum is 60.

The spelling of 12393988269 in words is "twelve billion, three hundred ninety-three million, nine hundred eighty-eight thousand, two hundred sixty-nine".

Divisors: 1 3 13 39 317794571 953383713 4131329423 12393988269