Search a number
-
+
230458811 = 1120950801
BaseRepresentation
bin11011011110010…
…00010110111011
3121001122112001112
431233020112323
5432444140221
634511310535
75465603402
oct1557102673
9531575045
10230458811
111090a7130
126521b44b
133899007b
1422870639
151537415b
hexdbc85bb

230458811 has 4 divisors (see below), whose sum is σ = 251409624. Its totient is φ = 209508000.

The previous prime is 230458807. The next prime is 230458819. The reversal of 230458811 is 118854032.

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 230458811 - 22 = 230458807 is a prime.

It is a super-2 number, since 2×2304588112 = 106222527135067442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230458819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10475390 + ... + 10475411.

It is an arithmetic number, because the mean of its divisors is an integer number (62852406).

Almost surely, 2230458811 is an apocalyptic number.

230458811 is a deficient number, since it is larger than the sum of its proper divisors (20950813).

230458811 is a wasteful number, since it uses less digits than its factorization.

230458811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20950812.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 230458811 is about 15180.8699026110. The cubic root of 230458811 is about 613.0997028477.

The spelling of 230458811 in words is "two hundred thirty million, four hundred fifty-eight thousand, eight hundred eleven".

Divisors: 1 11 20950801 230458811