20921678 is an even 8-digits composite number following 20921677
and preceding 20921679 . In scientific notation, it is written as 2.0921678 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 10364760 positive integers (up to 20921678) that are relatively prime to 20921678.
20921678 has 8 divisors, whose sum is 31670760
The reverse of 20921678 is 87612902
Previous prime number is 109
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred twenty-one thousand six hundred seventy-eight
Scientific notation
2.0921678 × 10^7
Engineering notation
2.0921678 × 10^6
Prime Factorization
2 × 109 × 95971
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921678
Product of the distinct prime numbers
The prime factorization of 20921678 is 2 × 109 × 95971.
Since it has a total of 3 prime factors.
1 , 6 , 61 , 75 , 394 , 257 , 9495 , 692 , 37582 , 75511 , 418518 , 495482 , 9627872 , 7147325 , 76130144 , 11927968 , 266932810 , 203338505 , 6811118869 , 3506116155
n×2
41843356
n×3
62765034
n×4
83686712
n×5
104608390
n÷2
10460839
n÷3
6973892.6666667
n÷3
5230419.5
n÷5
4184335.6
n2
437716610335684
n3
9.1577659766947E+21
n4
1.9159583096376E+29
n5
4.0085062815662E+36
2 √n
4574.022081276
3 √n
275.54899913824
4 √n
67.631516922778
5 √n
29.115168156054
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
-20921677
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 20921678 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921678) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110101001110
3
Ternary
1110100221010222
4
Quaternary
1033303311032
5
Quinary
20323443203
6
Senary
2024231342
8
Octal
117636516
10
Decimal
20921678
12
Duodecimal
700b552
16
Hexadecimal
13f3d4e
20
Vigesimal
6af43i
36
Base36
cgf9q
md5
b08242968045e5f938f7e11c39366d05
sha1
0d975bfafe18d68ec51240f6de27827343d1a3a1
sha256
352f23c0bebf82e7287bddecf7673e8494c73c56378543dab7e25fdff2bf8ff5
sha512
67a606c0a10a1c30ac243d92e2c629a00ca837d2a027e36b7461bff3e3bc090dcd547012ec90057dd2a8af628870fc1f4a76bfeb67717f0a0111672bbd0597e8
ripemd-160
484cab6a0c57524b6da9c3807de06038ccdefc07
Diameter
41843356
Circumference
131454779.81114
Area
1.3751272873848E+15
Volume
3.8359960420905E+22
Surface area
5.5005091495392E+15
Circumference
131454779.81114
Perimeter
83686712
Area
437716610335684
Diagonal
29587720.775203
Surface area
2626299662014104
Volume
9.1577659766947E+21
Space diagonal
36237409.275596
Perimeter
62765034
Area
1.8953685210456E+14
Altitude
18118704.637798
Surface area
1.8953685210456E+14
Volume
1.07925307044E+21
Height
9862573.5917343