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13105019 is a prime number
BaseRepresentation
bin110001111111…
…011101111011
3220122210201002
4301333131323
511323330034
61144515215
7216251024
oct61773573
926583632
1013105019
117440aa4
12447bb0b
13293ac65
141a51c4b
15123ce7e
hexc7f77b

13105019 has 2 divisors, whose sum is σ = 13105020. Its totient is φ = 13105018.

The previous prime is 13104989. The next prime is 13105049. The reversal of 13105019 is 91050131.

It is a balanced prime because it is at equal distance from previous prime (13104989) and next prime (13105049).

It is a cyclic number.

It is not a de Polignac number, because 13105019 - 216 = 13039483 is a prime.

It is a super-2 number, since 2×131050192 = 343483045980722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13105049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552509 + 6552510.

It is an arithmetic number, because the mean of its divisors is an integer number (6552510).

Almost surely, 213105019 is an apocalyptic number.

13105019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13105019 is an equidigital number, since it uses as much as digits as its factorization.

13105019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 13105019 is about 3620.0854962280. The cubic root of 13105019 is about 235.7649375953.

The spelling of 13105019 in words is "thirteen million, one hundred five thousand, nineteen".