Base | Representation |
---|---|
bin | 10001101000101011101111… |
… | …01110010001100011101110 |
3 | 12002022110020021021201101101 |
4 | 20310111313232101203232 |
5 | 20040343014143203310 |
6 | 214251511351033314 |
7 | 11111565660601660 |
oct | 1064256756214356 |
9 | 162273207251341 |
10 | 38781268334830 |
11 | 113a2052a4976a |
12 | 44240a036b83a |
13 | 188409a304218 |
14 | 981048306530 |
15 | 473bca7ed43a |
hex | 234577b918ee |
38781268334830 has 64 divisors (see below), whose sum is σ = 80490337072128. Its totient is φ = 13177830274560.
The previous prime is 38781268334777. The next prime is 38781268334843. The reversal of 38781268334830 is 3843386218783.
It is a super-2 number, since 2×387812683348302 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115975575 + ... + 116309485.
It is an arithmetic number, because the mean of its divisors is an integer number (1257661516752).
Almost surely, 238781268334830 is an apocalyptic number.
38781268334830 is an abundant number, since it is smaller than the sum of its proper divisors (41709068737298).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38781268334830 is a wasteful number, since it uses less digits than its factorization.
38781268334830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 348721.
The product of its (nonzero) digits is 111476736, while the sum is 64.
The spelling of 38781268334830 in words is "thirty-eight trillion, seven hundred eighty-one billion, two hundred sixty-eight million, three hundred thirty-four thousand, eight hundred thirty".
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