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12404431001 = 231453371179
BaseRepresentation
bin10111000110101110…
…01001100010011001
31012000111010101101102
423203113021202121
5200401013243001
65410514001145
7616251631604
oct134327114231
935014111342
1012404431001
115295a83676
1224a22761b5
131228b97c01
1485961733b
154c900be6b
hex2e35c9899

12404431001 has 8 divisors (see below), whose sum is σ = 12952697280. Its totient is φ = 11856910032.

The previous prime is 12404430989. The next prime is 12404431027. The reversal of 12404431001 is 10013440421.

12404431001 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 a cyclic number.

It is not a de Polignac number, because 12404431001 - 26 = 12404430937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12404431051) 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, 152171 + ... + 219008.

It is an arithmetic number, because the mean of its divisors is an integer number (1619087160).

Almost surely, 212404431001 is an apocalyptic number.

It is an amenable number.

12404431001 is a deficient number, since it is larger than the sum of its proper divisors (548266279).

12404431001 is a wasteful number, since it uses less digits than its factorization.

12404431001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372655.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12404431001 its reverse (10013440421), we get a palindrome (22417871422).

The spelling of 12404431001 in words is "twelve billion, four hundred four million, four hundred thirty-one thousand, one".

Divisors: 1 23 1453 33419 371179 8537117 539323087 12404431001