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13374439 = 131028803
BaseRepresentation
bin110011000001…
…001111100111
3221011111021121
4303001033213
511410440224
61154354411
7221452351
oct63011747
927144247
1013374439
117605461
12458ba07
132a03790
141ac20d1
151292be4
hexcc13e7

13374439 has 4 divisors (see below), whose sum is σ = 14403256. Its totient is φ = 12345624.

The previous prime is 13374437. The next prime is 13374443. The reversal of 13374439 is 93447331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93447331 = 387724103.

It is a cyclic number.

It is not a de Polignac number, because 13374439 - 21 = 13374437 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 (13374437) 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, 514389 + ... + 514414.

It is an arithmetic number, because the mean of its divisors is an integer number (3600814).

Almost surely, 213374439 is an apocalyptic number.

13374439 is a deficient number, since it is larger than the sum of its proper divisors (1028817).

13374439 is a wasteful number, since it uses less digits than its factorization.

13374439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028816.

The product of its digits is 27216, while the sum is 34.

The square root of 13374439 is about 3657.1080104367. The cubic root of 13374439 is about 237.3696510951.

It can be divided in two parts, 1337 and 4439, that added together give a square (5776 = 762).

The spelling of 13374439 in words is "thirteen million, three hundred seventy-four thousand, four hundred thirty-nine".

Divisors: 1 13 1028803 13374439