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12641240467 = 59974321991
BaseRepresentation
bin10111100010111101…
…00000010110010011
31012121222201112220101
423301132200112103
5201342124143332
65450213353231
7625155525322
oct136136402623
935558645811
1012641240467
1153a7718079
122549638817
131265c6c75b
1487cc5c0b9
154debd7ae7
hex2f17a0593

12641240467 has 8 divisors (see below), whose sum is σ = 12857402880. Its totient is φ = 12425141640.

The previous prime is 12641240459. The next prime is 12641240503. The reversal of 12641240467 is 76404214621.

12641240467 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 12641240467 - 23 = 12641240459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12641240407) 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, 563842 + ... + 585832.

It is an arithmetic number, because the mean of its divisors is an integer number (1607175360).

Almost surely, 212641240467 is an apocalyptic number.

12641240467 is a deficient number, since it is larger than the sum of its proper divisors (216162413).

12641240467 is an equidigital number, since it uses as much as digits as its factorization.

12641240467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31793.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 12641240467 in words is "twelve billion, six hundred forty-one million, two hundred forty thousand, four hundred sixty-seven".

Divisors: 1 59 9743 21991 574837 1297469 214258313 12641240467