18870139 is an odd 8-digits composite number following 18870138
and preceding 18870140 . In scientific notation, it is written as 1.8870139 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 18847840 positive integers (up to 18870139) that are relatively prime to 18870139.
18870139 has 4 divisors, whose sum is 18892440
The reverse of 18870139 is 93107881
Previous prime number is 881
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighteen million eight hundred seventy thousand one hundred thirty-nine
Scientific notation
1.8870139 × 10^7
Engineering notation
1.8870139 × 10^6
Prime Factorization
881 × 21419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18870139
Product of the distinct prime numbers
The prime factorization of 18870139 is 881 × 21419.
Since it has a total of 2 prime factors.
6 , 9 , 81 , 6 , 547 , 926 , 6768 , 3232 , 30050 , 86935 , 225284 , 93206 , 4231209 , 7322739 , 18334340 , 58420405 , 187893638 , 652848213 , 3843192523 , 880668320
n×2
37740278
n×3
56610417
n×4
75480556
n×5
94350695
n÷2
9435069.5
n÷3
6290046.3333333
n÷3
4717534.75
n÷5
3774027.8
n2
356082145879321
n3
6.7193195881611E+21
n4
1.2679449461402E+29
n5
2.3926297378013E+36
2 √n
4343.9773249869
3 √n
266.23084244299
4 √n
65.908856195407
5 √n
28.520361098437
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18870138
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18870139 can be divided by 4 positive divisors.
The sum of these divisors (counting 18870139) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111111110111101111011
3
Ternary
1022111200222001
4
Quaternary
1013332331323
5
Quinary
14312321024
6
Senary
1512241431
8
Octal
107767573
10
Decimal
18870139
12
Duodecimal
63a0277
16
Hexadecimal
11fef7b
20
Vigesimal
5hif6j
36
Base36
b8gaj
md5
c37bf510868aa51824e6af7b98a6383c
sha1
af3912f0f59fbe522a4508c5695042d5467df5fc
sha256
d4e24f33d54aa2142877d8581f0117fa079c8dfa4073f7d698de8e22e088f416
sha512
3498f9c0c8f469894291efadc36aff5ad5f861f4ed7646fbcb5a1bab8a44f70d3f05f20c931c137e22795fded7de1e931910c0512cc63a1806fdf0c01e1486ec
ripemd-160
497122179e42d62927bd76672dcfb590a8225a1a
Diameter
37740278
Circumference
118564580.10924
Area
1.118665053569E+15
Volume
2.8145820073718E+22
Surface area
4.4746602142759E+15
Circumference
118564580.10924
Perimeter
75480556
Area
356082145879321
Diagonal
26686406.497665
Surface area
2136492875275926
Volume
6.7193195881611E+21
Space diagonal
32684039.493887
Perimeter
56610417
Area
1.5418809208278E+14
Altitude
16342019.746943
Surface area
1.5418809208278E+14
Volume
7.9187940762471E+20
Height
8895468.8325552