Search a number
-
+
214145 = 542829
BaseRepresentation
bin110100010010000001
3101212202022
4310102001
523323040
64331225
71551221
oct642201
9355668
10214145
11136988
12a3b15
1376619
1458081
15436b5
hex34481

214145 has 4 divisors (see below), whose sum is σ = 256980. Its totient is φ = 171312.

The previous prime is 214141. The next prime is 214147. The reversal of 214145 is 541412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 85264 = 359^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 214145 - 22 = 214141 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 214145.

It is not an unprimeable number, because it can be changed into a prime (214141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21410 + ... + 21419.

It is an arithmetic number, because the mean of its divisors is an integer number (64245).

2214145 is an apocalyptic number.

It is an amenable number.

214145 is a deficient number, since it is larger than the sum of its proper divisors (42835).

214145 is an equidigital number, since it uses as much as digits as its factorization.

214145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42834.

The product of its digits is 160, while the sum is 17.

The square root of 214145 is about 462.7580361269. The cubic root of 214145 is about 59.8277466940.

Adding to 214145 its reverse (541412), we get a palindrome (755557).

The spelling of 214145 in words is "two hundred fourteen thousand, one hundred forty-five".

Divisors: 1 5 42829 214145