Search a number
-
+
153213 = 351071
BaseRepresentation
bin100101011001111101
321210011120
4211121331
514400323
63141153
71205454
oct453175
9253146
10153213
11a5125
12747b9
1354978
143db9b
15305e3
hex2567d

153213 has 4 divisors (see below), whose sum is σ = 204288. Its totient is φ = 102140.

The previous prime is 153191. The next prime is 153247. The reversal of 153213 is 312351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 153213 - 210 = 152189 is a prime.

It is a D-number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 153192 and 153201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25533 + ... + 25538.

It is an arithmetic number, because the mean of its divisors is an integer number (51072).

2153213 is an apocalyptic number.

It is an amenable number.

153213 is a deficient number, since it is larger than the sum of its proper divisors (51075).

153213 is an equidigital number, since it uses as much as digits as its factorization.

153213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51074.

The product of its digits is 90, while the sum is 15.

The square root of 153213 is about 391.4243221876. The cubic root of 153213 is about 53.5096206532.

Adding to 153213 its reverse (312351), we get a palindrome (465564).

The spelling of 153213 in words is "one hundred fifty-three thousand, two hundred thirteen".

Divisors: 1 3 51071 153213