Search a number
-
+
230332543 = 732904649
BaseRepresentation
bin11011011101010…
…01100001111111
3121001102002211221
431232221201333
5432431120133
634504454211
75464536310
oct1556514177
9531362757
10230332543
11109020281
126517a367
133894775c
142283a607
151534ba2d
hexdba987f

230332543 has 4 divisors (see below), whose sum is σ = 263237200. Its totient is φ = 197427888.

The previous prime is 230332513. The next prime is 230332549. The reversal of 230332543 is 345233032.

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

It is a de Polignac number, because none of the positive numbers 2k-230332543 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 (230332549) 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, 16452318 + ... + 16452331.

It is an arithmetic number, because the mean of its divisors is an integer number (65809300).

Almost surely, 2230332543 is an apocalyptic number.

230332543 is a deficient number, since it is larger than the sum of its proper divisors (32904657).

230332543 is an equidigital number, since it uses as much as digits as its factorization.

230332543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32904656.

The product of its (nonzero) digits is 6480, while the sum is 25.

The square root of 230332543 is about 15176.7105460966. The cubic root of 230332543 is about 612.9877102885.

Adding to 230332543 its reverse (345233032), we get a palindrome (575565575).

The spelling of 230332543 in words is "two hundred thirty million, three hundred thirty-two thousand, five hundred forty-three".

Divisors: 1 7 32904649 230332543