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13260869 is a prime number
BaseRepresentation
bin110010100101…
…100001000101
3220221201111022
4302211201011
511343321434
61152120525
7220500266
oct62454105
926851438
1013260869
1175380a6
124536145
132993b8b
141a9296d
15126e22e
hexca5845

13260869 has 2 divisors, whose sum is σ = 13260870. Its totient is φ = 13260868.

The previous prime is 13260847. The next prime is 13260881. The reversal of 13260869 is 96806231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7317025 + 5943844 = 2705^2 + 2438^2 .

It is a cyclic number.

It is not a de Polignac number, because 13260869 - 216 = 13195333 is a prime.

It is a super-2 number, since 2×132608692 = 351701293270322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13260809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6630434 + 6630435.

It is an arithmetic number, because the mean of its divisors is an integer number (6630435).

Almost surely, 213260869 is an apocalyptic number.

It is an amenable number.

13260869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13260869 is an equidigital number, since it uses as much as digits as its factorization.

13260869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 13260869 is about 3641.5476105634. The cubic root of 13260869 is about 236.6958598739.

The spelling of 13260869 in words is "thirteen million, two hundred sixty thousand, eight hundred sixty-nine".