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2439213941 = 17143483173
BaseRepresentation
bin1001000101100011…
…0111001101110101
320021222210220111002
42101120313031311
514443414321231
61042012453045
7114305655623
oct22130671565
96258726432
102439213941
11104196659a
12580a7a185
132cb468778
14191d4a513
15e42200cb
hex91637375

2439213941 has 4 divisors (see below), whose sum is σ = 2582697132. Its totient is φ = 2295730752.

The previous prime is 2439213913. The next prime is 2439213949. The reversal of 2439213941 is 1493129342.

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 1542211441 + 897002500 = 39271^2 + 29950^2 .

It is a cyclic number.

It is not a de Polignac number, because 2439213941 - 214 = 2439197557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2439213895 and 2439213904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2439213949) 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, 71741570 + ... + 71741603.

It is an arithmetic number, because the mean of its divisors is an integer number (645674283).

Almost surely, 22439213941 is an apocalyptic number.

It is an amenable number.

2439213941 is a deficient number, since it is larger than the sum of its proper divisors (143483191).

2439213941 is a wasteful number, since it uses less digits than its factorization.

2439213941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143483190.

The product of its digits is 46656, while the sum is 38.

The square root of 2439213941 is about 49388.3988503373. The cubic root of 2439213941 is about 1346.1185153157.

The spelling of 2439213941 in words is "two billion, four hundred thirty-nine million, two hundred thirteen thousand, nine hundred forty-one".

Divisors: 1 17 143483173 2439213941