Search a number
-
+
13131452 = 2211172939
BaseRepresentation
bin110010000101…
…111010111100
3220201010222002
4302011322330
511330201302
61145241432
7216421055
oct62057274
926633862
1013131452
117459944
124493278
132949cb9
141a5b72c
151245c02
hexc85ebc

13131452 has 12 divisors (see below), whose sum is σ = 23008440. Its totient is φ = 6557616.

The previous prime is 13131449. The next prime is 13131467. The reversal of 13131452 is 25413131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2999 + ... + 5937.

It is an arithmetic number, because the mean of its divisors is an integer number (1917370).

Almost surely, 213131452 is an apocalyptic number.

It is an amenable number.

13131452 is a deficient number, since it is larger than the sum of its proper divisors (9876988).

13131452 is a wasteful number, since it uses less digits than its factorization.

13131452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4060 (or 4058 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 13131452 is about 3623.7345377387. The cubic root of 13131452 is about 235.9233448257.

Adding to 13131452 its reverse (25413131), we get a palindrome (38544583).

The spelling of 13131452 in words is "thirteen million, one hundred thirty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 1117 2234 2939 4468 5878 11756 3282863 6565726 13131452