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13279066 = 26639533
BaseRepresentation
bin110010101001…
…111101011010
3220222122110021
4302221331122
511344412231
61152341054
7220604323
oct62517532
926878407
1013279066
11754a839
12454478a
13299c248
141a9944a
151274811
hexca9f5a

13279066 has 4 divisors (see below), whose sum is σ = 19918602. Its totient is φ = 6639532.

The previous prime is 13279061. The next prime is 13279093. The reversal of 13279066 is 66097231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66097231 = 401164831.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 3884841 = 3065^2 + 1971^2 .

It is not an unprimeable number, because it can be changed into a prime (13279061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3319765 + ... + 3319768.

Almost surely, 213279066 is an apocalyptic number.

13279066 is a deficient number, since it is larger than the sum of its proper divisors (6639536).

13279066 is an equidigital number, since it uses as much as digits as its factorization.

13279066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6639535.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 13279066 is about 3644.0452796309. The cubic root of 13279066 is about 236.8040776667.

The spelling of 13279066 in words is "thirteen million, two hundred seventy-nine thousand, sixty-six".

Divisors: 1 2 6639533 13279066