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224161 = 7311033
BaseRepresentation
bin110110101110100001
3102101111021
4312232201
524133121
64445441
71622350
oct665641
9371437
10224161
11143463
12a9881
137b052
145b997
1546641
hex36ba1

224161 has 8 divisors (see below), whose sum is σ = 264704. Its totient is φ = 185760.

The previous prime is 224153. The next prime is 224171. The reversal of 224161 is 161422.

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

It is a cyclic number.

It is not a de Polignac number, because 224161 - 23 = 224153 is a prime.

It is a Duffinian number.

224161 is a lucky number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (224101) 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, 300 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (33088).

2224161 is an apocalyptic number.

It is an amenable number.

224161 is a deficient number, since it is larger than the sum of its proper divisors (40543).

224161 is a wasteful number, since it uses less digits than its factorization.

224161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071.

The product of its digits is 96, while the sum is 16.

The square root of 224161 is about 473.4564393902. The cubic root of 224161 is about 60.7463262750.

Adding to 224161 its reverse (161422), we get a palindrome (385583).

The spelling of 224161 in words is "two hundred twenty-four thousand, one hundred sixty-one".

Divisors: 1 7 31 217 1033 7231 32023 224161