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12673133281 = 31676101653
BaseRepresentation
bin10111100110110000…
…01010101011100001
31012201012201212121201
423303120022223201
5201423310231111
65453313121201
7626023566304
oct136330125341
935635655551
1012673133281
115413720676
122558259201
13126c758143
148831a0b3b
154e28d76c1
hex2f360aae1

12673133281 has 8 divisors (see below), whose sum is σ = 13277199104. Its totient is φ = 12081270960.

The previous prime is 12673133237. The next prime is 12673133353. The reversal of 12673133281 is 18233137621.

12673133281 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 12673133281 - 215 = 12673100513 is a prime.

It is a super-2 number, since 2×126731332812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12673133281.

It is not an unprimeable number, because it can be changed into a prime (12673133381) 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, 3048750 + ... + 3052903.

It is an arithmetic number, because the mean of its divisors is an integer number (1659649888).

Almost surely, 212673133281 is an apocalyptic number.

It is an amenable number.

12673133281 is a deficient number, since it is larger than the sum of its proper divisors (604065823).

12673133281 is an equidigital number, since it uses as much as digits as its factorization.

12673133281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101751.

The product of its digits is 36288, while the sum is 37.

The spelling of 12673133281 in words is "twelve billion, six hundred seventy-three million, one hundred thirty-three thousand, two hundred eighty-one".

Divisors: 1 31 67 2077 6101653 189151243 408810751 12673133281