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38118131711 = 1159346916931
BaseRepresentation
bin100011100000000001…
…001000011111111111
310122101111222201111222
4203200001020133333
51111031220203321
625302231503555
72516413526222
oct434001103777
9118344881458
1038118131711
11151907675a0
127479827bbb
13379622992a
141bb86a35b9
15ed16ab3ab
hex8e00487ff

38118131711 has 16 divisors (see below), whose sum is σ = 42302908800. Its totient is φ = 34053679200.

The previous prime is 38118131617. The next prime is 38118131729. The reversal of 38118131711 is 11713181183.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38118131711 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 (38118131791) 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 15 ways as a sum of consecutive naturals, for example, 2242916 + ... + 2259846.

It is an arithmetic number, because the mean of its divisors is an integer number (2643931800).

Almost surely, 238118131711 is an apocalyptic number.

38118131711 is a deficient number, since it is larger than the sum of its proper divisors (4184777089).

38118131711 is a wasteful number, since it uses less digits than its factorization.

38118131711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470.

The product of its digits is 4032, while the sum is 35.

The spelling of 38118131711 in words is "thirty-eight billion, one hundred eighteen million, one hundred thirty-one thousand, seven hundred eleven".

Divisors: 1 11 59 649 3469 16931 38159 186241 204671 998929 2251381 10988219 58733639 646070029 3465284701 38118131711