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12970169 is a prime number
BaseRepresentation
bin110001011110…
…100010111001
3220101221201122
4301132202321
511310021134
61141555025
7215146622
oct61364271
926357648
1012970169
117359753
124415a75
1328c1774
141a18a49
15121302e
hexc5e8b9

12970169 has 2 divisors, whose sum is σ = 12970170. Its totient is φ = 12970168.

The previous prime is 12970159. The next prime is 12970187. The reversal of 12970169 is 96107921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10368400 + 2601769 = 3220^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 12970169 - 212 = 12966073 is a prime.

It is a super-2 number, since 2×129701692 = 336450567777122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12970109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6485084 + 6485085.

It is an arithmetic number, because the mean of its divisors is an integer number (6485085).

Almost surely, 212970169 is an apocalyptic number.

It is an amenable number.

12970169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12970169 is an equidigital number, since it uses as much as digits as its factorization.

12970169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 12970169 is about 3601.4120841692. The cubic root of 12970169 is about 234.9534780400.

The spelling of 12970169 in words is "twelve million, nine hundred seventy thousand, one hundred sixty-nine".