128214021 is an odd 9-digits composite number following 128214020
and preceding 128214022 . In scientific notation, it is written as 1.28214021 × 10^8.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 77562240 positive integers (up to 128214021) that are relatively prime to 128214021.
128214021 has 16 divisors, whose sum is 187225920
The reverse of 128214021 is 120412821
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 21
Digital Root 3
Name
one hundred twenty-eight million two hundred fourteen thousand twenty-one
Scientific notation
1.28214021 × 10^8
Engineering notation
1.28214021 × 10^6
Prime Factorization
3 × 13 × 59 × 55721
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
128214021
Product of the distinct prime numbers
The prime factorization of 128214021 is 3 × 13 × 59 × 55721.
Since it has a total of 4 prime factors.
7 , 6 , 67 , 38 , 903 , 630 , 88 , 8254 , 16189 , 73025 , 427696 , 902064 , 1424621 , 7800110 , 55349249 , 22611414 , 195371709 , 438164195 , 4152121332 , 7252480337
n×2
256428042
n×3
384642063
n×4
512856084
n×5
641070105
n÷2
64107010.5
n÷3
42738007
n÷3
32053505.25
n÷5
25642804.2
n2
16438835180988441
n3
2.1076891591108E+24
n4
2.702353021077E+32
n5
3.4647954699378E+40
2 √n
11323.163029825
3 √n
504.24914851448
4 √n
106.41035208017
5 √n
41.839559559851
1 , 3 , 13 , 39 , 59 , 177 , 767 , 2301 , 55721 , 167163 , 724373 , 2173119 , 3287539 , 9862617 , 42738007 , 128214021
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-128214020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 128214021 can be divided by 16 positive divisors.
The sum of these divisors (counting 128214021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101001000110010000000101
3
Ternary
22221020221120110
4
Quaternary
13221012100011
5
Quinary
230310322041
6
Senary
20420023233
8
Octal
751062005
10
Decimal
128214021
12
Duodecimal
36b31b19
16
Hexadecimal
7a46405
20
Vigesimal
2016f11
36
Base36
24c2kl
md5
2ac2cda6dc497383d3df1f44d0c6761e
sha1
873e03d8d7891e41a7b4a668fe329bbcda5b4c44
sha256
df77f1cc19dc5253751e6e982b7f1a0a1e55a3cb5cd93235dc656fd115397de8
sha512
221db1be35b4aa8e3b0f86de493736b692abef0cfe47ca1e67701b7a2b2fe0e0b935e37d9bef424a01fabca7aad0589840c0d9ac0162c13a458d9f2ef9d71cca
ripemd-160
d9526551473da435b7b6f407a9f481a408d49d8f
Diameter
256428042
Circumference
805592452.92161
Area
5.1644123838167E+16
Volume
8.8286677044177E+24
Surface area
2.0657649535267E+17
Circumference
805592452.92161
Perimeter
512856084
Area
16438835180988441
Diagonal
181322007.38459
Surface area
98633011085930646
Volume
2.1076891591108E+24
Space diagonal
222073198.6147
Perimeter
384642063
Area
7.1182244376807E+15
Altitude
111036599.30735
Surface area
7.1182244376807E+15
Volume
2.4839354950677E+23
Height
60440669.128196