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13042069 is a prime number
BaseRepresentation
bin110001110000…
…000110010101
3220112121100121
4301300012111
511314321234
61143311541
7215566345
oct61600625
926477317
1013042069
1173a8777
12444b5b1
132918401
141a36d25
1512294b4
hexc70195

13042069 has 2 divisors, whose sum is σ = 13042070. Its totient is φ = 13042068.

The previous prime is 13042033. The next prime is 13042087. The reversal of 13042069 is 96024031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 439569 = 3550^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 13042069 - 213 = 13033877 is a prime.

It is a super-2 number, since 2×130420692 = 340191127601522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13042669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521034 + 6521035.

It is an arithmetic number, because the mean of its divisors is an integer number (6521035).

Almost surely, 213042069 is an apocalyptic number.

It is an amenable number.

13042069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13042069 is an equidigital number, since it uses as much as digits as its factorization.

13042069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13042069 is about 3611.3804839701. The cubic root of 13042069 is about 235.3868323310.

The spelling of 13042069 in words is "thirteen million, forty-two thousand, sixty-nine".