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69848784281107 = 135372983406239
BaseRepresentation
bin11111110000110111011111…
…11110011001111000010011
3100011022110220212120100010101
433320123233332121320103
533123400302233443412
6404320031041513231
720466256663154566
oct1770335776317023
9304273825510111
1069848784281107
112028a780855417
127a011b4642817
132cc893461b470
1413369b08524dd
15811dd9323457
hex3f86eff99e13

69848784281107 has 4 divisors (see below), whose sum is σ = 75221767687360. Its totient is φ = 64475800874856.

The previous prime is 69848784281011. The next prime is 69848784281137. The reversal of 69848784281107 is 70118248784896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69848784281107 is a prime.

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 69848784281107.

It is not an unprimeable number, because it can be changed into a prime (69848784281137) 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, 2686491703107 + ... + 2686491703132.

It is an arithmetic number, because the mean of its divisors is an integer number (18805441921840).

Almost surely, 269848784281107 is an apocalyptic number.

69848784281107 is a deficient number, since it is larger than the sum of its proper divisors (5372983406253).

69848784281107 is a wasteful number, since it uses less digits than its factorization.

69848784281107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372983406252.

The product of its (nonzero) digits is 346816512, while the sum is 73.

The spelling of 69848784281107 in words is "sixty-nine trillion, eight hundred forty-eight billion, seven hundred eighty-four million, two hundred eighty-one thousand, one hundred seven".

Divisors: 1 13 5372983406239 69848784281107