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12706069 is a prime number
BaseRepresentation
bin110000011110…
…000100010101
3212220112110011
4300132010111
511223043234
61132200221
7212666635
oct60360425
925815404
1012706069
117199292
124309071
13282b4ac
14198a6c5
1511aeb64
hexc1e115

12706069 has 2 divisors, whose sum is σ = 12706070. Its totient is φ = 12706068.

The previous prime is 12706049. The next prime is 12706073. The reversal of 12706069 is 96060721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 18225 = 3562^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 12706069 - 219 = 12181781 is a prime.

It is a super-2 number, since 2×127060692 = 322888378865522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12706069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12706009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6353034 + 6353035.

It is an arithmetic number, because the mean of its divisors is an integer number (6353035).

Almost surely, 212706069 is an apocalyptic number.

It is an amenable number.

12706069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12706069 is an equidigital number, since it uses as much as digits as its factorization.

12706069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 12706069 is about 3564.5573357712. The cubic root of 12706069 is about 233.3478138406.

The spelling of 12706069 in words is "twelve million, seven hundred six thousand, sixty-nine".