Search a number
-
+
242431032113 = 257943311409
BaseRepresentation
bin1110000111001000000…
…0111111101100110001
3212011202102202110010022
43201302000333230301
512432444321011423
6303212110213225
723341444525664
oct3416200775461
9764672673108
10242431032113
11938a5aa7696
123ab997b4215
1319b26c3407a
14ba3b4a96db
15648d5b1dc8
hex387203fb31

242431032113 has 4 divisors (see below), whose sum is σ = 243374343780. Its totient is φ = 241487720448.

The previous prime is 242431032091. The next prime is 242431032121. The reversal of 242431032113 is 311230134242.

242431032113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311230134242 = 2155615067121.

It can be written as a sum of positive squares in 2 ways, for example, as 198945437089 + 43485595024 = 446033^2 + 208532^2 .

It is a cyclic number.

It is not a de Polignac number, because 242431032113 - 236 = 173711555377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242431032013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471655448 + ... + 471655961.

It is an arithmetic number, because the mean of its divisors is an integer number (60843585945).

Almost surely, 2242431032113 is an apocalyptic number.

It is an amenable number.

242431032113 is a deficient number, since it is larger than the sum of its proper divisors (943311667).

242431032113 is an equidigital number, since it uses as much as digits as its factorization.

242431032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943311666.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 242431032113 its reverse (311230134242), we get a palindrome (553661166355).

The spelling of 242431032113 in words is "two hundred forty-two billion, four hundred thirty-one million, thirty-two thousand, one hundred thirteen".

Divisors: 1 257 943311409 242431032113