21609951 is an odd 8-digits composite number following 21609950
and preceding 21609952 . In scientific notation, it is written as 2.1609951 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 12579840 positive integers (up to 21609951) that are relatively prime to 21609951.
21609951 has 16 divisors, whose sum is 23164064
The reverse of 21609951 is 15990612
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million six hundred nine thousand nine hundred fifty-one
Scientific notation
2.1609951 × 10^7
Engineering notation
2.1609951 × 10^6
Prime Factorization
33 × 43 × 97 × 157
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21609951
Product of the distinct prime numbers
The prime factorization of 21609951 is 33 × 43 × 97 × 157.
Since it has a total of 4 prime factors.
6 , 3 , 70 , 38 , 279 , 248 , 207 , 9675 , 24094 , 16689 , 931484 , 96366 , 6267293 , 8910971 , 94741007 , 97200110 , 213064459 , 537963413 , 2002582544 , 2731561982
n×2
43219902
n×3
64829853
n×4
86439804
n×5
108049755
n÷2
10804975.5
n÷3
7203317
n÷3
5402487.75
n÷5
4321990.2
n2
466989982222401
n3
1.0091630633317E+22
n4
2.1807964349608E+29
n5
4.7126904100477E+36
2 √n
4648.650449324
3 √n
278.53809053471
4 √n
68.18101238119
5 √n
29.304259831686
1 , 33 , 43 , 97 , 157 , 1419 , 3201 , 4171 , 5181 , 6751 , 15229 , 137643 , 222783 , 502557 , 654847 , 21609951
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
-21609950
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 21609951 can be divided by 16 positive divisors.
The sum of these divisors (counting 21609951) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010011011110111011111
3
Ternary
1111122220021120
4
Quaternary
1102123313133
5
Quinary
21013004301
6
Senary
2051102023
8
Octal
122336737
10
Decimal
21609951
12
Duodecimal
72a1913
16
Hexadecimal
149bddf
20
Vigesimal
6f14hb
36
Base36
cv6cf
md5
8cc4784b8dd4dfc2a2fe2227d9561ada
sha1
7266f399925d4f1c0c79413f980d634965ae1f30
sha256
0db805024a12a01514c3df402deb37ace073aeff0a8203fee1d6345cfae3f8b4
sha512
7ca355d5700b0a83a0b9127eef46f83c3f997156c49676100a4c05dfdcc2e343f19229c6bae3d9146ffc6702f92235ef05f7e9ff3ddeae0c8595c97a124f4d37
ripemd-160
5a6022b06ef93964a6e73c36725c49fdb1cb86ac
Diameter
43219902
Circumference
135779326.61207
Area
1.4670922974499E+15
Volume
4.227172354716E+22
Surface area
5.8683691897997E+15
Circumference
135779326.61207
Perimeter
86439804
Area
466989982222401
Diagonal
30561085.786418
Surface area
2801939893334406
Volume
1.0091630633317E+22
Space diagonal
37429533.081074
Perimeter
64829853
Area
2.0221259395872E+14
Altitude
18714766.540537
Surface area
2.0221259395872E+14
Volume
1.1893100756747E+21
Height
10187028.595473