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42231343313 = 178923606117
BaseRepresentation
bin100111010101001011…
…110010100011010001
311001000011201112002102
4213111023302203101
51142442210441223
631222324130145
73023350331615
oct472513624321
9131004645072
1042231343313
1116a01546325
128227236955
133ca0439453
142088a87345
151172845928
hex9d52f28d1

42231343313 has 4 divisors (see below), whose sum is σ = 42254951220. Its totient is φ = 42207735408.

The previous prime is 42231343247. The next prime is 42231343331. The reversal of 42231343313 is 31334313224.

42231343313 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.

It can be written as a sum of positive squares in 2 ways, for example, as 39169159744 + 3062183569 = 197912^2 + 55337^2 .

It is a cyclic number.

It is not a de Polignac number, because 42231343313 - 212 = 42231339217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42231345313) 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, 11801270 + ... + 11804847.

It is an arithmetic number, because the mean of its divisors is an integer number (10563737805).

Almost surely, 242231343313 is an apocalyptic number.

It is an amenable number.

42231343313 is a deficient number, since it is larger than the sum of its proper divisors (23607907).

42231343313 is a wasteful number, since it uses less digits than its factorization.

42231343313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23607906.

The product of its digits is 15552, while the sum is 29.

Adding to 42231343313 its reverse (31334313224), we get a palindrome (73565656537).

The spelling of 42231343313 in words is "forty-two billion, two hundred thirty-one million, three hundred forty-three thousand, three hundred thirteen".

Divisors: 1 1789 23606117 42231343313