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12657014297281 = 237322333804593
BaseRepresentation
bin1011100000101111000011…
…0101110101001011000001
31122210222222002101112212201
42320023300311311023001
53124333031130003111
642530315130353201
72444303420260414
oct270136065651301
948728862345781
1012657014297281
11403a89a66a852
12150502058b801
1370a72235a573
1431a861d91b7b
1516e3883236c1
hexb82f0d752c1

12657014297281 has 16 divisors (see below), whose sum is σ = 13448278803456. Its totient is φ = 11887317167616.

The previous prime is 12657014297231. The next prime is 12657014297297. The reversal of 12657014297281 is 18279241075621.

It is a cyclic number.

It is not a de Polignac number, because 12657014297281 - 219 = 12657013772993 is a prime.

It is a super-2 number, since 2×126570142972812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12657014297231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16527880 + ... + 17276713.

It is an arithmetic number, because the mean of its divisors is an integer number (840517425216).

Almost surely, 212657014297281 is an apocalyptic number.

It is an amenable number.

12657014297281 is a deficient number, since it is larger than the sum of its proper divisors (791264506175).

12657014297281 is a wasteful number, since it uses less digits than its factorization.

12657014297281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33804912.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 12657014297281 in words is "twelve trillion, six hundred fifty-seven billion, fourteen million, two hundred ninety-seven thousand, two hundred eighty-one".

Divisors: 1 23 73 223 1679 5129 16279 374417 33804593 777505639 2467735289 7538424239 56757911647 173383757497 550304969447 12657014297281