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13041869 = 53246073
BaseRepresentation
bin110001110000…
…000011001101
3220112121002012
4301300003031
511314314434
61143311005
7215565641
oct61600315
926477065
1013041869
1173a8605
12444b465
1329182a9
141a36c21
1512293ce
hexc700cd

13041869 has 4 divisors (see below), whose sum is σ = 13287996. Its totient is φ = 12795744.

The previous prime is 13041841. The next prime is 13041877. The reversal of 13041869 is 96814031.

It is a happy number.

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 7344100 + 5697769 = 2710^2 + 2387^2 .

It is a cyclic number.

It is not a de Polignac number, because 13041869 - 216 = 12976333 is a prime.

It is a super-2 number, since 2×130418692 = 340180694026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13041269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122984 + ... + 123089.

It is an arithmetic number, because the mean of its divisors is an integer number (3321999).

Almost surely, 213041869 is an apocalyptic number.

It is an amenable number.

13041869 is a deficient number, since it is larger than the sum of its proper divisors (246127).

13041869 is an equidigital number, since it uses as much as digits as its factorization.

13041869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246126.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13041869 is about 3611.3527936218. The cubic root of 13041869 is about 235.3856291066.

The spelling of 13041869 in words is "thirteen million, forty-one thousand, eight hundred sixty-nine".

Divisors: 1 53 246073 13041869