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12739484819 = 194331548497
BaseRepresentation
bin10111101110101010…
…10001110010010011
31012212211120212211002
423313111101302103
5202042302003234
65504043212215
7630460556105
oct136725216223
935784525732
1012739484819
11544811a556
12257651706b
13128041a0c9
1488bd13575
154e864227e
hex2f7551c93

12739484819 has 8 divisors (see below), whose sum is σ = 13440962640. Its totient is φ = 12041104896.

The previous prime is 12739484731. The next prime is 12739484833. The reversal of 12739484819 is 91848493721.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12739484819 - 216 = 12739419283 is a prime.

It is a super-2 number, since 2×127394848192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12739484419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766022 + ... + 782475.

It is an arithmetic number, because the mean of its divisors is an integer number (1680120330).

Almost surely, 212739484819 is an apocalyptic number.

12739484819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12739484819 is a deficient number, since it is larger than the sum of its proper divisors (701477821).

12739484819 is a wasteful number, since it uses less digits than its factorization.

12739484819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548949.

The product of its digits is 3483648, while the sum is 56.

The spelling of 12739484819 in words is "twelve billion, seven hundred thirty-nine million, four hundred eighty-four thousand, eight hundred nineteen".

Divisors: 1 19 433 8227 1548497 29421443 670499201 12739484819