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12404604413 = 26737463949
BaseRepresentation
bin10111000110101111…
…10011110111111101
31012000111110012021002
423203113303313331
5200401034320123
65410521420045
7616253253305
oct134327636775
935014405232
1012404604413
115296091993
1224a233a625
131228c28b16
14859660605
154c9043528
hex2e35f3dfd

12404604413 has 4 divisors (see below), whose sum is σ = 12405095100. Its totient is φ = 12404113728.

The previous prime is 12404604397. The next prime is 12404604419. The reversal of 12404604413 is 31440640421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31440640421 = 73571427351.

It can be written as a sum of positive squares in 2 ways, for example, as 2902838884 + 9501765529 = 53878^2 + 97477^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404604413 - 24 = 12404604397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404604419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205238 + ... + 258711.

It is an arithmetic number, because the mean of its divisors is an integer number (3101273775).

Almost surely, 212404604413 is an apocalyptic number.

It is an amenable number.

12404604413 is a deficient number, since it is larger than the sum of its proper divisors (490687).

12404604413 is an equidigital number, since it uses as much as digits as its factorization.

12404604413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490686.

The product of its (nonzero) digits is 9216, while the sum is 29.

The spelling of 12404604413 in words is "twelve billion, four hundred four million, six hundred four thousand, four hundred thirteen".

Divisors: 1 26737 463949 12404604413