Base | Representation |
---|---|
bin | 100100001100110101… |
… | …010000000011110000 |
3 | 10201022220202011110220 |
4 | 210030311100003300 |
5 | 1114101204213124 |
6 | 25505010453040 |
7 | 2544143322600 |
oct | 441465200360 |
9 | 121286664426 |
10 | 38869991664 |
11 | 15537108059 |
12 | 7649594180 |
13 | 3885c25b8a |
14 | 1c4a49ac00 |
15 | 10276c4879 |
hex | 90cd500f0 |
38869991664 has 60 divisors (see below), whose sum is σ = 116808298344. Its totient is φ = 11105711232.
The previous prime is 38869991663. The next prime is 38869991681. The reversal of 38869991664 is 46619996883.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38869991663) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8260827 + ... + 8265530.
Almost surely, 238869991664 is an apocalyptic number.
It is an amenable number.
38869991664 is an abundant number, since it is smaller than the sum of its proper divisors (77938306680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38869991664 is a wasteful number, since it uses less digits than its factorization.
38869991664 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16526382 (or 16526369 counting only the distinct ones).
The product of its digits is 120932352, while the sum is 69.
The spelling of 38869991664 in words is "thirty-eight billion, eight hundred sixty-nine million, nine hundred ninety-one thousand, six hundred sixty-four".
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