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13048741 = 171574889
BaseRepresentation
bin110001110001…
…101110100101
3220112221111201
4301301232211
511320024431
61143402501
7215624656
oct61615645
926487451
1013048741
117402792
124453431
13291b464
141a3952d
15122b461
hexc71ba5

13048741 has 8 divisors (see below), whose sum is σ = 13907160. Its totient is φ = 12200448.

The previous prime is 13048733. The next prime is 13048747. The reversal of 13048741 is 14784031.

It can be written as a sum of positive squares in 4 ways, for example, as 3407716 + 9641025 = 1846^2 + 3105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13048741 - 23 = 13048733 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 (13048747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225 + ... + 5113.

It is an arithmetic number, because the mean of its divisors is an integer number (1738395).

Almost surely, 213048741 is an apocalyptic number.

It is an amenable number.

13048741 is a deficient number, since it is larger than the sum of its proper divisors (858419).

13048741 is a wasteful number, since it uses less digits than its factorization.

13048741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5063.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 13048741 is about 3612.3041123361. The cubic root of 13048741 is about 235.4269648491.

The spelling of 13048741 in words is "thirteen million, forty-eight thousand, seven hundred forty-one".

Divisors: 1 17 157 2669 4889 83113 767573 13048741