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13279060 = 2251574229
BaseRepresentation
bin110010101001…
…111101010100
3220222122110001
4302221331110
511344412220
61152341044
7220604314
oct62517524
926878401
1013279060
11754a833
124544784
13299c242
141a99444
15127480a
hexca9f54

13279060 has 24 divisors (see below), whose sum is σ = 28070280. Its totient is φ = 5276544.

The previous prime is 13279033. The next prime is 13279061. The reversal of 13279060 is 6097231.

It can be written as a sum of positive squares in 4 ways, for example, as 3952144 + 9326916 = 1988^2 + 3054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13279061) 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, 1026 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (1169595).

Almost surely, 213279060 is an apocalyptic number.

13279060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13279060 is an abundant number, since it is smaller than the sum of its proper divisors (14791220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13279060 is a wasteful number, since it uses less digits than its factorization.

13279060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4395 (or 4393 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13279060 is about 3644.0444563699. The cubic root of 13279060 is about 236.8040420009.

The spelling of 13279060 in words is "thirteen million, two hundred seventy-nine thousand, sixty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 4229 8458 16916 21145 42290 84580 663953 1327906 2655812 3319765 6639530 13279060