Base | Representation |
---|---|
bin | 111011011000101110… |
… | …1101000010011010100 |
3 | 110012011212210122221012 |
4 | 1312301131220103110 |
5 | 4042141013323233 |
6 | 134330452111352 |
7 | 12133226616122 |
oct | 1666135502324 |
9 | 405155718835 |
10 | 127531386068 |
11 | 4a0a4162a29 |
12 | 20872005558 |
13 | c045614228 |
14 | 625b6a8912 |
15 | 34b6287548 |
hex | 1db17684d4 |
127531386068 has 24 divisors (see below), whose sum is σ = 224120773800. Its totient is φ = 63497115648.
The previous prime is 127531386023. The next prime is 127531386149. The reversal of 127531386068 is 860683135721.
It can be written as a sum of positive squares in 4 ways, for example, as 18630066064 + 108901320004 = 136492^2 + 330002^2 .
It is a super-3 number, since 3×1275313860683 (a number of 34 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 2219396 + ... + 2276132.
It is an arithmetic number, because the mean of its divisors is an integer number (9338365575).
Almost surely, 2127531386068 is an apocalyptic number.
It is an amenable number.
127531386068 is a deficient number, since it is larger than the sum of its proper divisors (96589387732).
127531386068 is a wasteful number, since it uses less digits than its factorization.
127531386068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 59099 (or 59097 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 50.
The spelling of 127531386068 in words is "one hundred twenty-seven billion, five hundred thirty-one million, three hundred eighty-six thousand, sixty-eight".
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