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13282261 = 29458009
BaseRepresentation
bin110010101010…
…101111010101
3220222210211121
4302222233111
511400013021
61152403541
7220616536
oct62525725
926883747
1013282261
117552183
1245465b1
1329a0835
141a9a68d
151275741
hexcaabd5

13282261 has 4 divisors (see below), whose sum is σ = 13740300. Its totient is φ = 12824224.

The previous prime is 13282259. The next prime is 13282267. The reversal of 13282261 is 16228231.

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 2193361 + 11088900 = 1481^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 13282261 - 21 = 13282259 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 (13282267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228976 + ... + 229033.

It is an arithmetic number, because the mean of its divisors is an integer number (3435075).

Almost surely, 213282261 is an apocalyptic number.

It is an amenable number.

13282261 is a deficient number, since it is larger than the sum of its proper divisors (458039).

13282261 is an equidigital number, since it uses as much as digits as its factorization.

13282261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458038.

The product of its digits is 1152, while the sum is 25.

The square root of 13282261 is about 3644.4836396944. The cubic root of 13282261 is about 236.8230681679.

The spelling of 13282261 in words is "thirteen million, two hundred eighty-two thousand, two hundred sixty-one".

Divisors: 1 29 458009 13282261