Base | Representation |
---|---|
bin | 10111110100110110… |
… | …10010000010111011 |
3 | 1020000110020221212211 |
4 | 23322123102002323 |
5 | 202144043443040 |
6 | 5513135515551 |
7 | 631661011240 |
oct | 137233220273 |
9 | 36013227784 |
10 | 12791390395 |
11 | 5474451a23 |
12 | 258b988bb7 |
13 | 128b0c1974 |
14 | 894b855c7 |
15 | 4ece968ea |
hex | 2fa6d20bb |
12791390395 has 8 divisors (see below), whose sum is σ = 17542478304. Its totient is φ = 8771239104.
The previous prime is 12791390389. The next prime is 12791390399. The reversal of 12791390395 is 59309319721.
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 12791390395 - 25 = 12791390363 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12791390399) 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, 182734114 + ... + 182734183.
It is an arithmetic number, because the mean of its divisors is an integer number (2192809788).
Almost surely, 212791390395 is an apocalyptic number.
12791390395 is a deficient number, since it is larger than the sum of its proper divisors (4751087909).
12791390395 is an equidigital number, since it uses as much as digits as its factorization.
12791390395 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 365468309.
The product of its (nonzero) digits is 459270, while the sum is 49.
The spelling of 12791390395 in words is "twelve billion, seven hundred ninety-one million, three hundred ninety thousand, three hundred ninety-five".
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