21031181 is an odd 8-digits prime number following 21031180
and preceding 21031182 . In scientific notation, it is written as 2.1031181 × 10^7.
The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors.
There are 21031180 positive integers (up to 21031181) that are relatively prime to 21031181.
21031181 has 2 divisors, whose sum is 21031182
The reverse of 21031181 is 18113012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million thirty-one thousand one hundred eighty-one
Scientific notation
2.1031181 × 10^7
Engineering notation
2.1031181 × 10^6
Prime Factorization
21031181
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21031181
Product of the distinct prime numbers
The prime factorization of 21031181 is 21031181.
Since it has a total of 1 prime factors.
3 , 2 , 45 , 39 , 690 , 16 , 6335 , 4465 , 7550 , 69136 , 800114 , 755797 , 9619974 , 1807740 , 96991868 , 84432886 , 50726186 , 794562407 , 4926577403 , 2569896765
n×2
42062362
n×3
63093543
n×4
84124724
n×5
105155905
n÷2
10515590.5
n÷3
7010393.6666667
n÷3
5257795.25
n÷5
4206236.2
n2
442310574254761
n3
9.3023137453658E+21
n4
1.9563864409758E+29
n5
4.1145117346107E+36
2 √n
4585.976559033
3 √n
276.02889934036
4 √n
67.719838740453
5 √n
29.145582010968
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21031182
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10515591
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4585.976668061
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999049031
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031181 can be divided by 2 positive divisors.
The sum of these divisors (counting 21031181) is 21031182, the average is 10515591.
Base
System
Value
2
Binary
1010000001110100100001101
3
Ternary
1110120111100122
4
Quaternary
1100032210031
5
Quinary
20340444211
6
Senary
2030434325
8
Octal
120164415
10
Decimal
21031181
12
Duodecimal
70629a5
16
Hexadecimal
140e90d
20
Vigesimal
6b8hj1
36
Base36
cirrh
md5
fd45eaee685db5c7366ae3cfe65c3701
sha1
a4f798982e712fbab2b430dc4b11c61132ada8f0
sha256
0889fc58b8138ce61e50d9902a1b8397923e5c5d4e7f7e93b371f0e6a2b8fecb
sha512
33576399edbb3b63b5c686a077dfac5077e6546b6845d90dd2711e5ce5b1b1eab31e73f82532abcef2a146811fd6141e0c5835bdf6ff66e4f70e9771dae5d280
ripemd-160
23a41216630f1538cf5abf33e544cc8d0d499c27
Diameter
42062362
Circumference
132142807.45183
Area
1.3895596506838E+15
Volume
3.8965440698438E+22
Surface area
5.5582386027354E+15
Circumference
132142807.45183
Perimeter
84124724
Area
442310574254761
Diagonal
29742581.402923
Surface area
2653863445528566
Volume
9.3023137453658E+21
Space diagonal
36427074.035177
Perimeter
63093543
Area
1.9152609683355E+14
Altitude
18213537.017589
Surface area
1.9152609683355E+14
Volume
1.0962881883455E+21
Height
9914193.8009745