Search a number
-
+
232021 = 673463
BaseRepresentation
bin111000101001010101
3102210021101
4320221111
524411041
64550101
71654306
oct705125
9383241
10232021
11149359
12b2331
13817ba
14607ad
1548b31
hex38a55

232021 has 4 divisors (see below), whose sum is σ = 235552. Its totient is φ = 228492.

The previous prime is 232013. The next prime is 232049. The reversal of 232021 is 120232.

232021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 232021 - 23 = 232013 is a prime.

It is a Duffinian number.

232021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 231989 and 232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232051) 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, 1665 + ... + 1798.

It is an arithmetic number, because the mean of its divisors is an integer number (58888).

2232021 is an apocalyptic number.

It is an amenable number.

232021 is a deficient number, since it is larger than the sum of its proper divisors (3531).

232021 is an equidigital number, since it uses as much as digits as its factorization.

232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 232021 is about 481.6855820969. The cubic root of 232021 is about 61.4481904421.

Adding to 232021 its reverse (120232), we get a palindrome (352253).

It can be divided in two parts, 2 and 32021, that added together give a palindrome (32023).

The spelling of 232021 in words is "two hundred thirty-two thousand, twenty-one".

Divisors: 1 67 3463 232021