Search a number
-
+
13144632 = 233677809
BaseRepresentation
bin110010001001…
…001000111000
3220201211001020
4302021020320
511331112012
61145422440
7216504354
oct62111070
926654036
1013144632
117468836
12449aa20
132952cb7
141a62464
151249a8c
hexc89238

13144632 has 32 divisors (see below), whose sum is σ = 32950800. Its totient is φ = 4369664.

The previous prime is 13144603. The next prime is 13144633. The reversal of 13144632 is 23644131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15844 + ... + 16652.

Almost surely, 213144632 is an apocalyptic number.

13144632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13144632 is an abundant number, since it is smaller than the sum of its proper divisors (19806168).

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

13144632 is a wasteful number, since it uses less digits than its factorization.

13144632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495 (or 1491 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 13144632 is about 3625.5526475284. The cubic root of 13144632 is about 236.0022502898.

Adding to 13144632 its reverse (23644131), we get a palindrome (36788763).

The spelling of 13144632 in words is "thirteen million, one hundred forty-four thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 677 809 1354 1618 2031 2427 2708 3236 4062 4854 5416 6472 8124 9708 16248 19416 547693 1095386 1643079 2190772 3286158 4381544 6572316 13144632