21102971 is an odd 8-digits composite number following 21102970
and preceding 21102972 . In scientific notation, it is written as 2.1102971 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 20304000 positive integers (up to 21102971) that are relatively prime to 21102971.
21102971 has 8 divisors, whose sum is 21909888
The reverse of 21102971 is 17920112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million one hundred two thousand nine hundred seventy-one
Scientific notation
2.1102971 × 10^7
Engineering notation
2.1102971 × 10^6
Prime Factorization
181 × 31 × 3761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21102971
Product of the distinct prime numbers
The prime factorization of 21102971 is 181 × 31 × 3761.
Since it has a total of 3 prime factors.
1 , 8 , 19 , 42 , 56 , 341 , 4834 , 3361 , 93476 , 76503 , 438308 , 790189 , 203043 , 1444438 , 777452 , 14015987 , 622131144 , 609593131 , 8903337817 , 8046091332
n×2
42205942
n×3
63308913
n×4
84411884
n×5
105514855
n÷2
10551485.5
n÷3
7034323.6666667
n÷3
5275742.75
n÷5
4220594.2
n2
445335385026841
n3
9.3978997154953E+21
n4
1.98323605157E+29
n5
4.1852172882437E+36
2 √n
4593.7970133649
3 √n
276.34261781215
4 √n
67.77755538056
5 √n
29.165452604608
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21102970
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21102971 can be divided by 8 positive divisors.
The sum of these divisors (counting 21102971) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100000000101111011
3
Ternary
1110201010211112
4
Quaternary
1100200011323
5
Quinary
20400243341
6
Senary
2032150535
8
Octal
120400573
10
Decimal
21102971
12
Duodecimal
709844b
16
Hexadecimal
142017b
20
Vigesimal
6bhh8b
36
Base36
ckb5n
md5
e8ff6d9f6639b9aa982a1700f4b49812
sha1
3d2177138b450ccddb7905f930e98f9a98d71241
sha256
890212fee9eb318fd80a9b478fa3452744b83b8fe5c33a372af207db0eca67a3
sha512
4474725225ba3e8eed265379fe9f04e5dc33fca2f67ddbeedf294cf3fd527c52b2ededc4456faef10114e57501f4c6f50a8278f5b34cacc58e7be19cd8977862
ripemd-160
14f87de9380a3b3020816b7197f60e090dcf2b7f
Diameter
42205942
Circumference
132593877.32504
Area
1.3990623739839E+15
Volume
3.9365830273831E+22
Surface area
5.5962494959356E+15
Circumference
132593877.32504
Perimeter
84411884
Area
445335385026841
Diagonal
29844107.794566
Surface area
2672012310161046
Volume
9.3978997154953E+21
Space diagonal
36551417.962653
Perimeter
63308913
Area
1.9283587831868E+14
Altitude
18275708.981326
Surface area
1.9283587831868E+14
Volume
1.1075531029563E+21
Height
9948035.931522