Base | Representation |
---|---|
bin | 100100001100111001… |
… | …001111111111111111 |
3 | 10201022222201102112010 |
4 | 210030321033333333 |
5 | 1114101441234444 |
6 | 25505045142303 |
7 | 2544155250141 |
oct | 441471177777 |
9 | 121288642463 |
10 | 38871039999 |
11 | 15537763750 |
12 | 76499ba993 |
13 | 38862020ac |
14 | 1c4a690c91 |
15 | 10278302b9 |
hex | 90ce4ffff |
38871039999 has 32 divisors (see below), whose sum is σ = 57356835840. Its totient is φ = 23218790400.
The previous prime is 38871039983. The next prime is 38871040001. The reversal of 38871039999 is 99993017883.
It is not a de Polignac number, because 38871039999 - 24 = 38871039983 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38871039979) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1491319 + ... + 1517159.
It is an arithmetic number, because the mean of its divisors is an integer number (1792401120).
Almost surely, 238871039999 is an apocalyptic number.
38871039999 is a deficient number, since it is larger than the sum of its proper divisors (18485795841).
38871039999 is a wasteful number, since it uses less digits than its factorization.
38871039999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 26511.
The product of its (nonzero) digits is 26453952, while the sum is 66.
The spelling of 38871039999 in words is "thirty-eight billion, eight hundred seventy-one million, thirty-nine thousand, nine hundred ninety-nine".
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