20921960 is an even 8-digits composite number following 20921959
and preceding 20921961 . In scientific notation, it is written as 2.0921960 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors.
There are 8368768 positive integers (up to 20921960) that are relatively prime to 20921960.
20921960 has 16 divisors, whose sum is 47074500
The reverse of 20921960 is 06912902
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million nine hundred twenty-one thousand nine hundred sixty
Scientific notation
2.0921960 × 10^7
Engineering notation
2.0921960 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 523049
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5230490
Product of the distinct prime numbers
The prime factorization of 20921960 is 2 × 2 × 2 × 5 × 523049.
Since it has a total of 5 prime factors.
10 , 3 , 14 , 63 , 901 , 816 , 5410 , 2992 , 908 , 99853 , 805764 , 566263 , 5637407 , 1315753 , 58505131 , 91428110 , 35385879 , 906426895 , 139637989 , 9932718830
n×2
41843920
n×3
62765880
n×4
83687840
n×5
104609800
n÷2
10460980
n÷3
6973986.6666667
n÷3
5230490
n÷5
4184392
n2
437728410241600
n3
9.1581362899383E+21
n4
1.9160616113264E+29
n5
4.0087764389706E+36
2 √n
4574.0529074334
3 √n
275.55023715985
4 √n
67.631744820265
5 √n
29.115246643384
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 523049 , 1046098 , 2092196 , 2615245 , 4184392 , 5230490 , 10460980 , 20921960
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
-20921959
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 20921960 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921960) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011111001101000
3
Ternary
1110100221112102
4
Quaternary
1033303321220
5
Quinary
20324000320
6
Senary
2024232532
8
Octal
117637150
10
Decimal
20921960
12
Duodecimal
700b748
16
Hexadecimal
13f3e68
20
Vigesimal
6af4i0
36
Base36
cgfhk
md5
42defb1b2b9eb8ac6789a254871ca8dd
sha1
168f144423df560d2b361e8484a9e19949551deb
sha256
8ce71705d03fcc8f8a169b6156ddb0cf636ab07dc383ffff78ccc6dbf7ff368b
sha512
1e4734b7299d58e49374862325fe24ab1c6b83f5ea8425ad8f01568aeceab7588241f7a27787ef005ca4eb9b72088d12ce488894afd11e40121db63e91dffa7a
ripemd-160
9281da961614ebf9513ce41f14e928b651bcbd2b
Diameter
41843920
Circumference
131456551.6694
Area
1.3751643578825E+15
Volume
3.8361511585393E+22
Surface area
5.5006574315302E+15
Circumference
131456551.6694
Perimeter
83687840
Area
437728410241600
Diagonal
29588119.583427
Surface area
2626370461449600
Volume
9.1581362899383E+21
Space diagonal
36237897.713924
Perimeter
62765880
Area
1.895419616137E+14
Altitude
18118948.856962
Surface area
1.895419616137E+14
Volume
1.0792967122743E+21
Height
9862706.5278091