138889 is an odd 6-digits prime number following 138888
and preceding 138890 . In scientific notation, it is written as 1.38889 × 10^5.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 138888 positive integers (up to 138889) that are relatively prime to 138889.
138889 has 2 divisors, whose sum is 138890
The reverse of 138889 is 988831
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 37
Digital Root 1
Name
one hundred thirty-eight thousand eight hundred eighty-nine
Scientific notation
1.38889 × 10^5
Engineering notation
1.38889 × 10^3
Prime Factorization
138889
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
138889
Product of the distinct prime numbers
The prime factorization of 138889 is 138889.
Since it has a total of 1 prime factors.
3 , 7 , 69 , 33 , 795 , 9 , 5898 , 5741 , 89423 , 63211 , 282584 , 248534 , 7626457 , 4339704 , 52190869 , 53068927 , 261483722 , 690609432 , 6469844020 , 5618621126
n×2
277778
n×3
416667
n×4
555556
n×5
694445
n÷2
69444.5
n÷3
46296.333333333
n÷3
34722.25
n÷5
27777.8
n2
19290154321
n3
2679190243489369
n4
3.7211005372799E+20
n5
5.1681993252227E+25
2 √n
372.67814532113
3 √n
51.787222242483
4 √n
19.304873615777
5 √n
10.679073367107
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
138890
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
69445
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
372.67948695897
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999856001152
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138889 can be divided by 2 positive divisors.
The sum of these divisors (counting 138889) is 138890, the average is 69445.
Base
System
Value
2
Binary
100001111010001001
3
Ternary
21001112001
4
Quaternary
201322021
5
Quinary
13421024
6
Senary
2551001
8
Octal
417211
10
Decimal
138889
12
Duodecimal
68461
16
Hexadecimal
21e89
20
Vigesimal
h749
36
Base36
2z61
md5
e3536c34e800d53edfbaaed5e0232c6f
sha1
0b5e35dd5346d14254a540d52794ab5e4f74d463
sha256
7b8a123701f15283ac9a25e3f91d7aae3df8c90a024d24b79c1af7603fe43010
sha512
6d240cf4351e557aed3a7f063e25de52de2954968e1a9cc25ac427c2c770b10ab4fbe5a42aaf0e6ecb966b4e9c049610ae456eee1c7a7a1f901b4548cfc9713b
ripemd-160
1e4b5fd9df32953b1aba32b319edacc55b4235b5
Diameter
277778
Circumference
872665.32412887
Area
60601807101.467
Volume
1.1222565848688E+16
Surface area
242407228405.87
Circumference
872665.32412887
Perimeter
555556
Area
19290154321
Diagonal
196418.70746444
Surface area
115740925926
Volume
2679190243489369
Space diagonal
240562.80461243
Perimeter
416667
Area
8352881842.4541
Altitude
120281.40230622
Surface area
8352881842.4541
Volume
3.1574559821003E+14
Height
65472.902488146