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3874387439 = 131571898279
BaseRepresentation
bin1110011011101110…
…0111010111101111
3101000000100021102002
43212323213113233
530413320344224
61440241322515
7165003515126
oct34673472757
911000307362
103874387439
111708a9969a
1290163643b
134998b0c60
1428a7b6abd
1517a2119ae
hexe6ee75ef

3874387439 has 8 divisors (see below), whose sum is σ = 4198995360. Its totient is φ = 3553576416.

The previous prime is 3874387417. The next prime is 3874387453. The reversal of 3874387439 is 9347834783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3874387439 - 28 = 3874387183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874387459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 947099 + ... + 951180.

It is an arithmetic number, because the mean of its divisors is an integer number (524874420).

Almost surely, 23874387439 is an apocalyptic number.

3874387439 is a deficient number, since it is larger than the sum of its proper divisors (324607921).

3874387439 is a wasteful number, since it uses less digits than its factorization.

3874387439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898449.

The product of its digits is 12192768, while the sum is 56.

The square root of 3874387439 is about 62244.5775871280. The cubic root of 3874387439 is about 1570.6075567901.

The spelling of 3874387439 in words is "three billion, eight hundred seventy-four million, three hundred eighty-seven thousand, four hundred thirty-nine".

Divisors: 1 13 157 2041 1898279 24677627 298029803 3874387439