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13267109 = 14989041
BaseRepresentation
bin110010100111…
…000010100101
3220222001001102
4302213002211
511344021414
61152205445
7220524422
oct62470245
926861042
1013267109
117541859
124539885
13299697b
141a94d49
151270ede
hexca70a5

13267109 has 4 divisors (see below), whose sum is σ = 13356300. Its totient is φ = 13177920.

The previous prime is 13267103. The next prime is 13267117. The reversal of 13267109 is 90176231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 770884 + 12496225 = 878^2 + 3535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13267109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13267103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44372 + ... + 44669.

It is an arithmetic number, because the mean of its divisors is an integer number (3339075).

Almost surely, 213267109 is an apocalyptic number.

It is an amenable number.

13267109 is a deficient number, since it is larger than the sum of its proper divisors (89191).

13267109 is an equidigital number, since it uses as much as digits as its factorization.

13267109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89190.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 13267109 is about 3642.4042883788. The cubic root of 13267109 is about 236.7329803813.

The spelling of 13267109 in words is "thirteen million, two hundred sixty-seven thousand, one hundred nine".

Divisors: 1 149 89041 13267109