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1281068297039 = 82313121118633
BaseRepresentation
bin10010101001000101100…
…111101110101101001111
311112110122212000022000102
4102221011213232231033
5131442111441001124
62420303055321315
7161361031600166
oct22510547565517
94473585008012
101281068297039
11454330724593
1218834322023b
1393a5bb5033b
144600b10c3dd
15234cbd7baae
hex12a459eeb4f

1281068297039 has 8 divisors (see below), whose sum is σ = 1282733446752. Its totient is φ = 1279403412480.

The previous prime is 1281068297029. The next prime is 1281068297051. The reversal of 1281068297039 is 9307928601821.

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 1281068297039 - 224 = 1281051519823 is a prime.

It is a super-2 number, since 2×12810682970392 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281068297029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10739267 + ... + 10857899.

It is an arithmetic number, because the mean of its divisors is an integer number (160341680844).

Almost surely, 21281068297039 is an apocalyptic number.

1281068297039 is a deficient number, since it is larger than the sum of its proper divisors (1665149713).

1281068297039 is a wasteful number, since it uses less digits than its factorization.

1281068297039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132577.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 1281068297039 in words is "one trillion, two hundred eighty-one billion, sixty-eight million, two hundred ninety-seven thousand, thirty-nine".

Divisors: 1 823 13121 118633 10798583 97634959 1556583593 1281068297039