21061878 is an even 8-digits composite number following 21061877
and preceding 21061879 . In scientific notation, it is written as 2.1061878 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6607616 positive integers (up to 21061878) that are relatively prime to 21061878.
21061878 has 16 divisors, whose sum is 44601840
The reverse of 21061878 is 87816012
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million sixty-one thousand eight hundred seventy-eight
Scientific notation
2.1061878 × 10^7
Engineering notation
2.1061878 × 10^6
Prime Factorization
2 × 3 × 17 × 206489
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21061878
Product of the distinct prime numbers
The prime factorization of 21061878 is 2 × 3 × 17 × 206489.
Since it has a total of 4 prime factors.
1 , 10 , 47 , 23 , 705 , 400 , 3452 , 9917 , 26628 , 80274 , 990609 , 551907 , 7363580 , 8831332 , 9144002 , 36657627 , 754811123 , 961488700 , 8835978312 , 9595086546
n×2
42123756
n×3
63185634
n×4
84247512
n×5
105309390
n÷2
10530939
n÷3
7020626
n÷3
5265469.5
n÷5
4212375.6
n2
443602704886884
n3
9.3431060507976E+21
n4
1.9678335978296E+29
n5
4.1446271161788E+36
2 √n
4589.3221721731
3 √n
276.1631308251
4 √n
67.744536105675
5 √n
29.154085195252
1 , 2 , 3 , 6 , 17 , 34 , 51 , 102 , 206489 , 412978 , 619467 , 1238934 , 3510313 , 7020626 , 10530939 , 21061878
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21061877
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21061878 can be divided by 16 positive divisors.
The sum of these divisors (counting 21061878) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000010110000011110110
3
Ternary
1110122001110120
4
Quaternary
1100112003312
5
Quinary
20342440003
6
Senary
2031232410
8
Octal
120260366
10
Decimal
21061878
12
Duodecimal
7078706
16
Hexadecimal
14160f6
20
Vigesimal
6bcedi
36
Base36
cjfg6
md5
f5809f66653d58fe4610897fa382e43f
sha1
6210915153510a3cdcb63e89ad37356ffaaa682f
sha256
15357a38c5b30a9ceb800de24d3eac71dff072b488701ccd586ab1a8fb2fbbf0
sha512
89d68c8d2f38dbf7453edf81bf7a62aea5bc48e5995fccd5fe657d351efb9cc8293ce361ecf7c49999a923f8128c19fefa0c3f6d3d1a355da9fc2064b4bfe54e
ripemd-160
99c646977191b1d0b383cca0cfc7cb83a90e499b
Diameter
42123756
Circumference
132335682.39121
Area
1.3936189987852E+15
Volume
3.9136311107861E+22
Surface area
5.5744759951408E+15
Circumference
132335682.39121
Perimeter
84247512
Area
443602704886884
Diagonal
29785993.516648
Surface area
2661616229321304
Volume
9.3431060507976E+21
Space diagonal
36480242.798817
Perimeter
63185634
Area
1.9208560580977E+14
Altitude
18240121.399409
Surface area
1.9208560580977E+14
Volume
1.101095607644E+21
Height
9928664.5055492