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12420775001 = 63175726003
BaseRepresentation
bin10111001000101010…
…11111110001011001
31012001121212202010202
423210111133301121
5200414204300001
65412300151545
7616540563005
oct134425376131
935047782122
1012420775001
1152a4227108
1224a78385b5
13122c39b20b
1485b86d705
154ca68996b
hex2e455fc59

12420775001 has 8 divisors (see below), whose sum is σ = 12457372224. Its totient is φ = 12384232560.

The previous prime is 12420774997. The next prime is 12420775009. The reversal of 12420775001 is 10057702421.

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 12420775001 - 22 = 12420774997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12420775009) 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, 464666 + ... + 490668.

It is an arithmetic number, because the mean of its divisors is an integer number (1557171528).

Almost surely, 212420775001 is an apocalyptic number.

It is an amenable number.

12420775001 is a deficient number, since it is larger than the sum of its proper divisors (36597223).

12420775001 is an equidigital number, since it uses as much as digits as its factorization.

12420775001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27391.

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 12420775001 in words is "twelve billion, four hundred twenty million, seven hundred seventy-five thousand, one".

Divisors: 1 631 757 26003 477667 16407893 19684271 12420775001