21861031 is an odd 8-digits composite number following 21861030
and preceding 21861032 . In scientific notation, it is written as 2.1861031 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 20575072 positive integers (up to 21861031) that are relatively prime to 21861031.
21861031 has 4 divisors, whose sum is 23146992
The reverse of 21861031 is 13016812
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million eight hundred sixty-one thousand thirty-one
Scientific notation
2.1861031 × 10^7
Engineering notation
2.1861031 × 10^6
Prime Factorization
17 × 1285943
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21861031
Product of the distinct prime numbers
The prime factorization of 21861031 is 17 × 1285943.
Since it has a total of 2 prime factors.
8 , 7 , 20 , 40 , 719 , 851 , 3533 , 8392 , 3940 , 24534 , 72413 , 604271 , 91216 , 646217 , 472622 , 84996928 , 548600780 , 242710828 , 2133509318 , 4459115650
n×2
43722062
n×3
65583093
n×4
87444124
n×5
109305155
n÷2
10930515.5
n÷3
7287010.3333333
n÷3
5465257.75
n÷5
4372206.2
n2
477904676382961
n3
1.0447488945453E+22
n4
2.283928797087E+29
n5
4.9929038234912E+36
2 √n
4675.5781460692
3 √n
279.61269154556
4 √n
68.378199347959
5 √n
29.372041152686
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
-21861030
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 21861031 can be divided by 4 positive divisors.
The sum of these divisors (counting 21861031) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011001001010100111
3
Ternary
1112010122200211
4
Quaternary
1103121022213
5
Quinary
21044023111
6
Senary
2100320251
8
Octal
123311247
10
Decimal
21861031
12
Duodecimal
73a3087
16
Hexadecimal
14d92a7
20
Vigesimal
6gccbb
36
Base36
d0k2v
md5
099bce0384fe738f92222feb98c86fdb
sha1
6d4359aec388dd22e7a6609c2135df8ebfc333e1
sha256
536cd2753ed4815557681f2a96915ecec9a3861eab2d1251087cbc91760ed50a
sha512
32136f821a00b255d5888cf5d2596be12034e4d4588ccd6c4259ca412462b8f18190d22fcef349da08d1f9500237f078a1260f130b318b294ebb424f8f3d6e98
ripemd-160
5305c66b9a4d54679e5e992afa5fa8173ce0a486
Diameter
43722062
Circumference
137356908.779
Area
1.5013818204409E+15
Volume
4.3762339359327E+22
Surface area
6.0055272817637E+15
Circumference
137356908.779
Perimeter
87444124
Area
477904676382961
Diagonal
30916166.527659
Surface area
2867428058297766
Volume
1.0447488945453E+22
Space diagonal
37864416.397838
Perimeter
65583093
Area
2.0693879516751E+14
Altitude
18932208.198919
Surface area
2.0693879516751E+14
Volume
1.2312483799502E+21
Height
10305388.842553