Search a number
-
+
13144734 = 233243421
BaseRepresentation
bin110010001001…
…001010011110
3220201211012000
4302021022132
511331112414
61145423130
7216504561
oct62111236
926654160
1013144734
117468919
12449aaa6
132953065
141a624d8
151249b09
hexc8929e

13144734 has 16 divisors (see below), whose sum is σ = 29210640. Its totient is φ = 4381560.

The previous prime is 13144721. The next prime is 13144741. The reversal of 13144734 is 43744131.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13144698 and 13144707.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 121657 + ... + 121764.

It is an arithmetic number, because the mean of its divisors is an integer number (1825665).

Almost surely, 213144734 is an apocalyptic number.

13144734 is an abundant number, since it is smaller than the sum of its proper divisors (16065906).

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

13144734 is a wasteful number, since it uses less digits than its factorization.

13144734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243432 (or 243426 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 13144734 is about 3625.5667143221. The cubic root of 13144734 is about 236.0028607333.

Adding to 13144734 its reverse (43744131), we get a palindrome (56888865).

The spelling of 13144734 in words is "thirteen million, one hundred forty-four thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 54 243421 486842 730263 1460526 2190789 4381578 6572367 13144734