Base | Representation |
---|---|
bin | 1110011011010110… |
… | …1101000011111001 |
3 | 100222220102112211001 |
4 | 3212311231003321 |
5 | 30412421303011 |
6 | 1440144205001 |
7 | 164654402353 |
oct | 34665550371 |
9 | 10886375731 |
10 | 3872837881 |
11 | 1708130470 |
12 | 901009761 |
13 | 49948a863 |
14 | 28a4d20d3 |
15 | 17a0077c1 |
hex | e6d6d0f9 |
3872837881 has 16 divisors (see below), whose sum is σ = 4477187520. Its totient is φ = 3310881280.
The previous prime is 3872837879. The next prime is 3872837893. The reversal of 3872837881 is 1887382783.
It is a cyclic number.
It is not a de Polignac number, because 3872837881 - 21 = 3872837879 is a prime.
It is a super-2 number, since 2×38728378812 = 29997746505017140322, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (3872837831) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233010 + ... + 249076.
It is an arithmetic number, because the mean of its divisors is an integer number (279824220).
Almost surely, 23872837881 is an apocalyptic number.
It is an amenable number.
3872837881 is a deficient number, since it is larger than the sum of its proper divisors (604349639).
3872837881 is a wasteful number, since it uses less digits than its factorization.
3872837881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17384.
The product of its digits is 3612672, while the sum is 55.
The square root of 3872837881 is about 62232.1290090577. The cubic root of 3872837881 is about 1570.3981411450.
It can be divided in two parts, 3872 and 837881, that added together give a triangular number (841753 = T1297).
The spelling of 3872837881 in words is "three billion, eight hundred seventy-two million, eight hundred thirty-seven thousand, eight hundred eighty-one".
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