21006951 is an odd 8-digits composite number following 21006950
and preceding 21006952 . In scientific notation, it is written as 2.1006951 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 10637568 positive integers (up to 21006951) that are relatively prime to 21006951.
21006951 has 32 divisors, whose sum is 34007040
The reverse of 21006951 is 15960012
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million six thousand nine hundred fifty-one
Scientific notation
2.1006951 × 10^7
Engineering notation
2.1006951 × 10^6
Prime Factorization
3 × 7 × 323 × 163 × 19
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21006951
Product of the distinct prime numbers
The prime factorization of 21006951 is 3 × 7 × 323 × 163 × 19.
Since it has a total of 5 prime factors.
8 , 3 , 97 , 21 , 579 , 410 , 3889 , 4481 , 61332 , 28661 , 862684 , 552313 , 6905951 , 4477173 , 11903076 , 58097671 , 229657596 , 748985502 , 9646340426 , 5427440745
n×2
42013902
n×3
63020853
n×4
84027804
n×5
105034755
n÷2
10503475.5
n÷3
7002317
n÷3
5251737.75
n÷5
4201390.2
n2
441291990316401
n3
9.2701992172691E+21
n4
1.9473862071741E+29
n5
4.0908646632182E+36
2 √n
4583.3340484848
3 √n
275.92285441025
4 √n
67.700325320376
5 √n
29.1388631955
1 , 3 , 7 , 19 , 21 , 57 , 133 , 163 , 323 , 399 , 489 , 969 , 1141 , 2261 , 3097 , 3423 , 6137 , 6783 , 9291 , 18411 , 21679 , 42959 , 52649 , 65037 , 128877 , 157947 , 368543 , 1000331 , 1105629 , 3000993 , 7002317 , 21006951
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
-21006950
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 21006951 can be divided by 32 positive divisors.
The sum of these divisors (counting 21006951) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000001000101001100111
3
Ternary
1110112021010020
4
Quaternary
1100020221213
5
Quinary
20334210301
6
Senary
2030130223
8
Octal
120105147
10
Decimal
21006951
12
Duodecimal
7050973
16
Hexadecimal
1408a67
20
Vigesimal
6b5h7b
36
Base36
ci92f
md5
17af070aec976b8750a3af0772a54ea2
sha1
629b2a4b527862cd166a791a802d643383c87134
sha256
5f7f1ffcdc8fa6ac71cb13c0d0a3f16263d1f529e2e41292c93f7ff8939bebd6
sha512
05685c064da80ec19087bbafc9321735d4b69d502fc7c4880223e82637662839c47f4d9800aecf442fba4a7fff9d94e74093e723b5bac52d7d9663b729fdb4b6
ripemd-160
d017df827be5bd7656ace7785ea49cd396009023
Diameter
42013902
Circumference
131990565.87184
Area
1.386359674866E+15
Volume
3.8830919677715E+22
Surface area
5.5454386994641E+15
Circumference
131990565.87184
Perimeter
84027804
Area
441291990316401
Diagonal
29708315.008307
Surface area
2647751941898406
Volume
9.2701992172691E+21
Space diagonal
36385106.44411
Perimeter
63020853
Area
1.910850370503E+14
Altitude
18192553.222055
Surface area
1.910850370503E+14
Volume
1.0925034549135E+21
Height
9902771.6694357