1215748021 is an odd 10-digits prime number following 1215748020
and preceding 1215748022 . In scientific notation, it is written as 1.215748021 × 10^9.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 1215748020 positive integers (up to 1215748021) that are relatively prime to 1215748021.
1215748021 has 2 divisors, whose sum is 1215748022
The reverse of 1215748021 is 1208475121
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 31
Digital Root 4
Name
one billion two hundred fifteen million seven hundred forty-eight thousand twenty-one
Scientific notation
1.215748021 × 10^9
Engineering notation
1.215748021 × 10^9
Prime Factorization
1215748021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1215748021
Product of the distinct prime numbers
The prime factorization of 1215748021 is 1215748021.
Since it has a total of 1 prime factors.
8 , 10 , 86 , 85 , 93 , 44 , 2842 , 5519 , 35148 , 89946 , 961931 , 324437 , 8458073 , 5560547 , 78306100 , 96232296 , 38957175 , 553375642 , 3210951531 , 2963039488
n×2
2431496042
n×3
3647244063
n×4
4862992084
n×5
6078740105
n÷2
607874010.5
n÷3
405249340.33333
n÷3
303937005.25
n÷5
243149604.2
n2
1478043250565416441
n3
1.7969281568273E+27
n4
2.184611850542E+36
n5
2.6559375339496E+45
2 √n
34867.578364435
3 √n
1067.2869283892
4 √n
186.72862224211
5 √n
65.609800055944
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1215748022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
607874011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
34867.578378775
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999983549
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1215748021 can be divided by 2 positive divisors.
The sum of these divisors (counting 1215748021) is 1215748022, the average is 607874011.
Base
System
Value
2
Binary
1001000011101101101011110110101
3
Ternary
10010201122101202111
4
Quaternary
1020131231132311
5
Quinary
4442212414041
6
Senary
320345411021
8
Octal
11035553665
10
Decimal
1215748021
12
Duodecimal
29b199a71
16
Hexadecimal
4876d7b5
20
Vigesimal
iji8a11
36
Base36
k3tp6d
md5
db975f5f3d7fe6dbe74703c90300e8df
sha1
3915717ff0a99bf1d66a741e0c842f78dcc61bc4
sha256
2e431985907851485a97addbe4e9a99961d3e569dddc2732e01ce2db07b1316d
sha512
075778d596179a69ec0219cf9820052d5cdbd25dc45a79c989dcc67fc33d1f8995d7cf9473edee77c870461fe29e7e6ca41265bb1cbca5ece3b2a15cbc1ae856
ripemd-160
5f964c817c3bebdcf8a2554ee81a7c28f2a0353a
Diameter
2431496042
Circumference
7638770102.7799
Area
4.6434098176643E+18
Volume
7.5269550620231E+27
Surface area
1.8573639270657E+19
Circumference
7638770102.7799
Perimeter
4862992084
Area
1478043250565416441
Diagonal
1719327339.7265
Surface area
8868259503392498646
Volume
1.7969281568273E+27
Space diagonal
2105737341.5733
Perimeter
3647244063
Area
6.4001150144089E+17
Altitude
1052868670.7867
Surface area
6.4001150144089E+17
Volume
2.1177001416627E+26
Height
573109113.24215