Search a number
-
+
23324221 = 172415693
BaseRepresentation
bin101100011111…
…0011000111101
31121212222211001
41120332120331
521432333341
62151530301
7402152434
oct130763075
947788731
1023324221
1112190918
127989991
134aa851b
14315211b
1520aad31
hex163e63d

23324221 has 8 divisors (see below), whose sum is σ = 24803064. Its totient is φ = 21857280.

The previous prime is 23324219. The next prime is 23324261. The reversal of 23324221 is 12242332.

It can be written as a sum of positive squares in 4 ways, for example, as 4575321 + 18748900 = 2139^2 + 4330^2 .

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 23324221 - 21 = 23324219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23324201) 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, 1251 + ... + 6943.

It is an arithmetic number, because the mean of its divisors is an integer number (3100383).

Almost surely, 223324221 is an apocalyptic number.

It is an amenable number.

23324221 is a deficient number, since it is larger than the sum of its proper divisors (1478843).

23324221 is a wasteful number, since it uses less digits than its factorization.

23324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951.

The product of its digits is 576, while the sum is 19.

The square root of 23324221 is about 4829.5156071805. The cubic root of 23324221 is about 285.7167595381.

Adding to 23324221 its reverse (12242332), we get a palindrome (35566553).

The spelling of 23324221 in words is "twenty-three million, three hundred twenty-four thousand, two hundred twenty-one".

Divisors: 1 17 241 4097 5693 96781 1372013 23324221