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13049427 = 324118049
BaseRepresentation
bin110001110001…
…111001010011
3220112222110010
4301301321103
511320040202
61143410003
7215626656
oct61617123
926488403
1013049427
117403256
124453903
13291b871
141a3989d
15122b76c
hexc71e53

13049427 has 8 divisors (see below), whose sum is σ = 17472400. Its totient is φ = 8663040.

The previous prime is 13049417. The next prime is 13049431. The reversal of 13049427 is 72494031.

It is a happy number.

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

It is not a de Polignac number, because 13049427 - 24 = 13049411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13049394 and 13049403.

It is not an unprimeable number, because it can be changed into a prime (13049417) 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, 8302 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (2184050).

Almost surely, 213049427 is an apocalyptic number.

13049427 is a deficient number, since it is larger than the sum of its proper divisors (4422973).

13049427 is a wasteful number, since it uses less digits than its factorization.

13049427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18293.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13049427 is about 3612.3990643338. The cubic root of 13049427 is about 235.4310904085.

It can be divided in two parts, 1304 and 9427, that added together give a triangular number (10731 = T146).

The spelling of 13049427 in words is "thirteen million, forty-nine thousand, four hundred twenty-seven".

Divisors: 1 3 241 723 18049 54147 4349809 13049427