21061830 is an even 8-digits composite number following 21061829
and preceding 21061831 . In scientific notation, it is written as 2.1061830 × 10^7.
The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors.
There are 5287296 positive integers (up to 21061830) that are relatively prime to 21061830.
21061830 has 32 divisors, whose sum is 43477632
The reverse of 21061830 is 03816012
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million sixty-one thousand eight hundred thirty
Scientific notation
2.1061830 × 10^7
Engineering notation
2.1061830 × 10^6
Prime Factorization
2 × 3 × 145 × 43 × 563
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21061830
Product of the distinct prime numbers
The prime factorization of 21061830 is 2 × 3 × 145 × 43 × 563.
Since it has a total of 5 prime factors.
2 , 7 , 33 , 29 , 368 , 905 , 7305 , 9822 , 92729 , 78127 , 336085 , 242516 , 4129066 , 3656656 , 85234815 , 90281395 , 169559948 , 525467231 , 6657081365 , 4811810368
n×2
42123660
n×3
63185490
n×4
84247320
n×5
105309150
n÷2
10530915
n÷3
7020610
n÷3
5265457.5
n÷5
4212366
n2
443600682948900
n3
9.3430421721536E+21
n4
1.9678156591273E+29
n5
4.1445798883877E+36
2 √n
4589.3169426397
3 √n
276.16292103311
4 √n
67.744497508209
5 √n
29.154071906813
1 , 2 , 3 , 6 , 43 , 86 , 129 , 145 , 258 , 290 , 435 , 563 , 870 , 1126 , 1689 , 3378 , 6235 , 12470 , 18705 , 24209 , 37410 , 48418 , 72627 , 81635 , 145254 , 163270 , 244905 , 489810 , 3510305 , 7020610 , 10530915 , 21061830
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21061829
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21061830 can be divided by 32 positive divisors.
The sum of these divisors (counting 21061830) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000010110000011000110
3
Ternary
1110122001101210
4
Quaternary
1100112003012
5
Quinary
20342434310
6
Senary
2031232250
8
Octal
120260306
10
Decimal
21061830
12
Duodecimal
7078686
16
Hexadecimal
14160c6
20
Vigesimal
6bceba
36
Base36
cjfeu
md5
5132e9153fa820d4cc06b15dbf36ad85
sha1
e7cc4da0183342913dd11b4099cb4b771a157820
sha256
12a30ee60ee41c9a16eb72bf8e2560ade15d8589b463c2aa89580c5511ec7aaa
sha512
50cff5e9491ec6895d9337f66f69732bd3a80a4d53bd13a74bd67a7b9d404b4f46082aa327581167548bf6b6bc7460c7d93eb693753949b1ae8ad63f533e0429
ripemd-160
56a03c4eacbe5691ef189448d1524efbb5c81120
Diameter
42123660
Circumference
132335380.79831
Area
1.3936126466797E+15
Volume
3.9136043533623E+22
Surface area
5.5744505867187E+15
Circumference
132335380.79831
Perimeter
84247320
Area
443600682948900
Diagonal
29785925.634397
Surface area
2661604097693400
Volume
9.3430421721536E+21
Space diagonal
36480159.660378
Perimeter
63185490
Area
1.9208473028494E+14
Altitude
18240079.830189
Surface area
1.9208473028494E+14
Volume
1.1010880794736E+21
Height
9928641.8781322