Search a number
-
+
230040131 = 710932359
BaseRepresentation
bin11011011011000…
…10001001000011
3121000212020201212
431231202021003
5432342241011
634454320335
75462210636
oct1555421103
9530766655
10230040131
11108940612
12650590ab
1338874629
14227a1c1d
15152e008b
hexdb62243

230040131 has 4 divisors (see below), whose sum is σ = 230079600. Its totient is φ = 230000664.

The previous prime is 230040121. The next prime is 230040133. The reversal of 230040131 is 131040032.

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 230040131 - 218 = 229777987 is a prime.

It is a super-2 number, since 2×2300401312 = 105836923740994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230040133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9071 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (57519900).

Almost surely, 2230040131 is an apocalyptic number.

230040131 is a deficient number, since it is larger than the sum of its proper divisors (39469).

230040131 is an equidigital number, since it uses as much as digits as its factorization.

230040131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39468.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 230040131 is about 15167.0739102834. The cubic root of 230040131 is about 612.7282001830.

Adding to 230040131 its reverse (131040032), we get a palindrome (361080163).

Subtracting from 230040131 its reverse (131040032), we obtain a palindrome (99000099).

The spelling of 230040131 in words is "two hundred thirty million, forty thousand, one hundred thirty-one".

Divisors: 1 7109 32359 230040131