Search a number
-
+
13184161 = 36312
BaseRepresentation
bin110010010010…
…110010100001
3220210211021021
4302102302201
511333343121
61150325441
7220030534
oct62226241
926724237
1013184161
117495501
1244b9881
132967ca3
141a72a1b
151256641
hexc92ca1

13184161 has 3 divisors (see below), whose sum is σ = 13187793. Its totient is φ = 13180530.

The previous prime is 13184153. The next prime is 13184177. The reversal of 13184161 is 16148131.

It is a happy number.

The square root of 13184161 is 3631.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 13184161 - 23 = 13184153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13184131) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1816 + ... + 5446.

It is an arithmetic number, because the mean of its divisors is an integer number (4395931).

Almost surely, 213184161 is an apocalyptic number.

13184161 is the 3631-st square number.

13184161 is the 1816-th centered octagonal number.

It is an amenable number.

13184161 is a deficient number, since it is larger than the sum of its proper divisors (3632).

13184161 is an frugal number, since it uses more digits than its factorization.

13184161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262 (or 3631 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The cubic root of 13184161 is about 236.2385849677.

Multiplying 13184161 by its sum of digits (25), we get a square (329604025 = 181552).

Multiplying 13184161 by its product of digits (576), we get a square (7594076736 = 871442).

The spelling of 13184161 in words is "thirteen million, one hundred eighty-four thousand, one hundred sixty-one".

Divisors: 1 3631 13184161