Base | Representation |
---|---|
bin | 10001101011110100000000… |
… | …11000101111011001011100 |
3 | 12002200201202111020212220000 |
4 | 20311322000120233121130 |
5 | 20044123214143222403 |
6 | 214413132411454300 |
7 | 11122423262544315 |
oct | 1065720030573134 |
9 | 162621674225800 |
10 | 38888787867228 |
11 | 11433707a16852 |
12 | 4440aa8457390 |
13 | 1891273950300 |
14 | 986327cc160c |
15 | 4768bec777a3 |
hex | 235e8062f65c |
38888787867228 has 180 divisors, whose sum is σ = 112161837260088. Its totient is φ = 11740010555520.
The previous prime is 38888787867227. The next prime is 38888787867301. The reversal of 38888787867228 is 82276878788883.
38888787867228 is a `hidden beast` number, since 388 + 8 + 8 + 7 + 87 + 86 + 72 + 2 + 8 = 666.
It is a super-4 number, since 4×388887878672284 (a number of 55 digits) contains 4444 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38888787867227) by changing a digit.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3798118 + ... + 9602253.
Almost surely, 238888787867228 is an apocalyptic number.
It is an amenable number.
38888787867228 is an abundant number, since it is smaller than the sum of its proper divisors (73273049392860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38888787867228 is a wasteful number, since it uses less digits than its factorization.
38888787867228 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13400466 (or 13400442 counting only the distinct ones).
The product of its digits is 51791265792, while the sum is 90.
The spelling of 38888787867228 in words is "thirty-eight trillion, eight hundred eighty-eight billion, seven hundred eighty-seven million, eight hundred sixty-seven thousand, two hundred twenty-eight".
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