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12434647499 = 103857140869
BaseRepresentation
bin10111001010010100…
…11010100111001011
31012002120222112121222
423211022122213023
5200431232204444
65413513352255
7620066521421
oct134512324713
935076875558
1012434647499
11530104178a
1224b040868b
1312322175b1
1485d641111
154cb9c9eee
hex2e529a9cb

12434647499 has 8 divisors (see below), whose sum is σ = 12570111840. Its totient is φ = 12299466816.

The previous prime is 12434647487. The next prime is 12434647517. The reversal of 12434647499 is 99474643421.

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 12434647499 - 232 = 8139680203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12434647499.

It is not an unprimeable number, because it can be changed into a prime (12434647439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17837 + ... + 158705.

It is an arithmetic number, because the mean of its divisors is an integer number (1571263980).

Almost surely, 212434647499 is an apocalyptic number.

12434647499 is a deficient number, since it is larger than the sum of its proper divisors (135464341).

12434647499 is a wasteful number, since it uses less digits than its factorization.

12434647499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141829.

The product of its digits is 5225472, while the sum is 53.

The spelling of 12434647499 in words is "twelve billion, four hundred thirty-four million, six hundred forty-seven thousand, four hundred ninety-nine".

Divisors: 1 103 857 88271 140869 14509507 120724733 12434647499