Search a number
-
+
230232023 = 732890289
BaseRepresentation
bin11011011100100…
…00111111010111
3121001012222221222
431232100333113
5432414411043
634502400555
75463640250
oct1556207727
9531188858
10230232023
11108a617aa
126513015b
1338910a88
1422811b27
151532bd68
hexdb90fd7

230232023 has 4 divisors (see below), whose sum is σ = 263122320. Its totient is φ = 197341728.

The previous prime is 230231977. The next prime is 230232029. The reversal of 230232023 is 320232032.

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

It is a cyclic number.

It is not a de Polignac number, because 230232023 - 214 = 230215639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230231992 and 230232010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230232029) 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, 16445138 + ... + 16445151.

It is an arithmetic number, because the mean of its divisors is an integer number (65780580).

Almost surely, 2230232023 is an apocalyptic number.

230232023 is a deficient number, since it is larger than the sum of its proper divisors (32890297).

230232023 is an equidigital number, since it uses as much as digits as its factorization.

230232023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32890296.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 230232023 is about 15173.3985316408. The cubic root of 230232023 is about 612.8985254813.

Adding to 230232023 its reverse (320232032), we get a palindrome (550464055).

Subtracting 230232023 from its reverse (320232032), we obtain a palindrome (90000009).

The spelling of 230232023 in words is "two hundred thirty million, two hundred thirty-two thousand, twenty-three".

Divisors: 1 7 32890289 230232023