Base | Representation |
---|---|
bin | 100100001101111100… |
… | …111111111100010011 |
3 | 10201101020010201200122 |
4 | 210031330333330103 |
5 | 1114121013100034 |
6 | 25510521540455 |
7 | 2544462226466 |
oct | 441574777423 |
9 | 121336121618 |
10 | 38888800019 |
11 | 15546794053 |
12 | 765394472b |
13 | 3889aaca94 |
14 | 1c4cb952dd |
15 | 102918c62e |
hex | 90df3ff13 |
38888800019 has 4 divisors (see below), whose sum is σ = 39716221344. Its totient is φ = 38061378696.
The previous prime is 38888799959. The next prime is 38888800021. The reversal of 38888800019 is 91000888883.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91000888883 = 389 ⋅233935447.
It is not a de Polignac number, because 38888800019 - 220 = 38887751443 is a prime.
It is a super-2 number, since 2×388888000192 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (38888800099) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413710592 + ... + 413710685.
It is an arithmetic number, because the mean of its divisors is an integer number (9929055336).
Almost surely, 238888800019 is an apocalyptic number.
38888800019 is a deficient number, since it is larger than the sum of its proper divisors (827421325).
38888800019 is an equidigital number, since it uses as much as digits as its factorization.
38888800019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 827421324.
The product of its (nonzero) digits is 884736, while the sum is 53.
The spelling of 38888800019 in words is "thirty-eight billion, eight hundred eighty-eight million, eight hundred thousand, nineteen".
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