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4938869869 = 171132570989
BaseRepresentation
bin1001001100110000…
…10010110001101101
3110202012100120210021
410212120102301231
540103322313434
62134025042141
7233250462343
oct44630226155
913665316707
104938869869
11210495503a
12b5a026351
136092a740b
1434bd0b993
151dd8cdcb4
hex126612c6d

4938869869 has 8 divisors (see below), whose sum is σ = 5275671480. Its totient is φ = 4607210496.

The previous prime is 4938869849. The next prime is 4938869891. The reversal of 4938869869 is 9689688394.

It can be written as a sum of positive squares in 4 ways, for example, as 458174025 + 4480695844 = 21405^2 + 66938^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4938869869 - 217 = 4938738797 is a prime.

It is a super-2 number, since 2×49388698692 = 48784871165832154322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4938869798 and 4938869807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4938869809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283574 + ... + 1287415.

It is an arithmetic number, because the mean of its divisors is an integer number (659458935).

Almost surely, 24938869869 is an apocalyptic number.

It is an amenable number.

4938869869 is a deficient number, since it is larger than the sum of its proper divisors (336801611).

4938869869 is a wasteful number, since it uses less digits than its factorization.

4938869869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571119.

The product of its digits is 161243136, while the sum is 70.

The square root of 4938869869 is about 70277.0934871385. The cubic root of 4938869869 is about 1702.9786152956.

The spelling of 4938869869 in words is "four billion, nine hundred thirty-eight million, eight hundred sixty-nine thousand, eight hundred sixty-nine".

Divisors: 1 17 113 1921 2570989 43706813 290521757 4938869869