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12743836601 = 26953472817
BaseRepresentation
bin10111101111001011…
…11000001110111001
31012220010202222100012
423313211320032321
5202044410232401
65504320351305
7630542552366
oct136745701671
935803688305
1012743836601
11544a622071
122577a75535
1312812b1b22
1488c72746d
154e8c018bb
hex2f79783b9

12743836601 has 4 divisors (see below), whose sum is σ = 12744336372. Its totient is φ = 12743336832.

The previous prime is 12743836583. The next prime is 12743836613. The reversal of 12743836601 is 10663834721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10663834721 = 19561254459.

It can be written as a sum of positive squares in 2 ways, for example, as 8017411600 + 4726425001 = 89540^2 + 68749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12743836601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12743836621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209456 + ... + 263361.

It is an arithmetic number, because the mean of its divisors is an integer number (3186084093).

Almost surely, 212743836601 is an apocalyptic number.

It is an amenable number.

12743836601 is a deficient number, since it is larger than the sum of its proper divisors (499771).

12743836601 is an equidigital number, since it uses as much as digits as its factorization.

12743836601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499770.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 12743836601 in words is "twelve billion, seven hundred forty-three million, eight hundred thirty-six thousand, six hundred one".

Divisors: 1 26953 472817 12743836601