Base | Representation |
---|---|
bin | 10001101001101000011100… |
… | …10000010011111001110101 |
3 | 12002102120100112122021101201 |
4 | 20310310032100103321311 |
5 | 20041411240301021210 |
6 | 214314501313452501 |
7 | 11114131412431555 |
oct | 1064641620237165 |
9 | 162376315567351 |
10 | 38813858610805 |
11 | 11404957346443 |
12 | 442a476871131 |
13 | 18871922161a5 |
14 | 98285a781165 |
15 | 474986a3653a |
hex | 234d0e413e75 |
38813858610805 has 32 divisors (see below), whose sum is σ = 48751715255040. Its totient is φ = 29609407027200.
The previous prime is 38813858610757. The next prime is 38813858610829. The reversal of 38813858610805 is 50801685831883.
It is not a de Polignac number, because 38813858610805 - 211 = 38813858608757 is a prime.
It is a super-2 number, since 2×388138586108052 (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, 163032355 + ... + 163270255.
It is an arithmetic number, because the mean of its divisors is an integer number (1523491101720).
Almost surely, 238813858610805 is an apocalyptic number.
It is an amenable number.
38813858610805 is a deficient number, since it is larger than the sum of its proper divisors (9937856644235).
38813858610805 is a wasteful number, since it uses less digits than its factorization.
38813858610805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 242301.
The product of its (nonzero) digits is 44236800, while the sum is 64.
The spelling of 38813858610805 in words is "thirty-eight trillion, eight hundred thirteen billion, eight hundred fifty-eight million, six hundred ten thousand, eight hundred five".
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