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13479089 = 131036853
BaseRepresentation
bin110011011010…
…110010110001
3221100210211112
4303122302301
511422312324
61200523105
7222366431
oct63326261
927323745
1013479089
117677048
124620495
132a3c2c0
141b0c2c1
1512b3c0e
hexcdacb1

13479089 has 4 divisors (see below), whose sum is σ = 14515956. Its totient is φ = 12442224.

The previous prime is 13479077. The next prime is 13479107. The reversal of 13479089 is 98097431.

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 9048064 + 4431025 = 3008^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 13479089 - 28 = 13478833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13479889) 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 3 ways as a sum of consecutive naturals, for example, 518414 + ... + 518439.

It is an arithmetic number, because the mean of its divisors is an integer number (3628989).

Almost surely, 213479089 is an apocalyptic number.

It is an amenable number.

13479089 is a deficient number, since it is larger than the sum of its proper divisors (1036867).

13479089 is a wasteful number, since it uses less digits than its factorization.

13479089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036866.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 13479089 is about 3671.3878847106. The cubic root of 13479089 is about 237.9871529915.

The spelling of 13479089 in words is "thirteen million, four hundred seventy-nine thousand, eighty-nine".

Divisors: 1 13 1036853 13479089