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13012266 = 232168711
BaseRepresentation
bin110001101000…
…110100101010
3220111002110210
4301220310222
511312343031
61142521550
7215413431
oct61506452
926432423
1013012266
117388343
1244362b6
132907987
141a2a118
151220746
hexc68d2a

13012266 has 8 divisors (see below), whose sum is σ = 26024544. Its totient is φ = 4337420.

The previous prime is 13012261. The next prime is 13012291. The reversal of 13012266 is 66221031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

13012266 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13012261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1084350 + ... + 1084361.

It is an arithmetic number, because the mean of its divisors is an integer number (3253068).

Almost surely, 213012266 is an apocalyptic number.

13012266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13012266 is a wasteful number, since it uses less digits than its factorization.

13012266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168716.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 13012266 is about 3607.2518625680. The cubic root of 13012266 is about 235.2073980157.

Adding to 13012266 its reverse (66221031), we get a palindrome (79233297).

The spelling of 13012266 in words is "thirteen million, twelve thousand, two hundred sixty-six".

Divisors: 1 2 3 6 2168711 4337422 6506133 13012266