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23472133 = 26987257
BaseRepresentation
bin101100110001…
…0100000000101
31122011111201021
41121202200011
522002102013
62155031141
7403336606
oct131424005
948144637
1023472133
1112281a63
127a3b4b1
134b2a949
14318ddad
1520d9a8d
hex1662805

23472133 has 4 divisors (see below), whose sum is σ = 23559660. Its totient is φ = 23384608.

The previous prime is 23472079. The next prime is 23472139. The reversal of 23472133 is 33127432.

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 833569 + 22638564 = 913^2 + 4758^2 .

It is a cyclic number.

It is not a de Polignac number, because 23472133 - 213 = 23463941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23472098 and 23472107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23472139) 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, 43360 + ... + 43897.

It is an arithmetic number, because the mean of its divisors is an integer number (5889915).

Almost surely, 223472133 is an apocalyptic number.

It is an amenable number.

23472133 is a deficient number, since it is larger than the sum of its proper divisors (87527).

23472133 is an equidigital number, since it uses as much as digits as its factorization.

23472133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87526.

The product of its digits is 3024, while the sum is 25.

The square root of 23472133 is about 4844.8047432275. The cubic root of 23472133 is about 286.3194508675.

Adding to 23472133 its reverse (33127432), we get a palindrome (56599565).

The spelling of 23472133 in words is "twenty-three million, four hundred seventy-two thousand, one hundred thirty-three".

Divisors: 1 269 87257 23472133