21290940 is an even 8-digits composite number following 21290939
and preceding 21290941 . In scientific notation, it is written as 2.1290940 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors.
There are 5160960 positive integers (up to 21290940) that are relatively prime to 21290940.
21290940 has 24 divisors, whose sum is 40951232
The reverse of 21290940 is 04909212
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million two hundred ninety thousand nine hundred forty
Scientific notation
2.1290940 × 10^7
Engineering notation
2.1290940 × 10^6
Prime Factorization
2 × 2 × 33 × 15 × 10753
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10645470
Product of the distinct prime numbers
The prime factorization of 21290940 is 2 × 2 × 33 × 15 × 10753.
Since it has a total of 5 prime factors.
10 , 8 , 83 , 92 , 861 , 598 , 7790 , 7540 , 41491 , 53963 , 190848 , 127742 , 8978946 , 544033 , 34644408 , 88422380 , 802914729 , 284945252 , 1003652630 , 2657451915
n×2
42581880
n×3
63872820
n×4
85163760
n×5
106454700
n÷2
10645470
n÷3
7096980
n÷3
5322735
n÷5
4258188
n2
453304126083600
n3
9.6512709501984E+21
n4
2.0548463072442E+29
n5
4.3749609436757E+36
2 √n
4614.21065839
3 √n
277.16067606812
4 √n
67.927981409652
5 √n
29.217225146154
1 , 2 , 4 , 15 , 30 , 33 , 60 , 66 , 132 , 495 , 990 , 1980 , 10753 , 21506 , 43012 , 161295 , 322590 , 354849 , 645180 , 709698 , 1419396 , 5322735 , 10645470 , 21290940
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21290939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21290940 can be divided by 24 positive divisors.
The sum of these divisors (counting 21290940) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001001101111110111100
3
Ternary
1111001200200100
4
Quaternary
1101031332330
5
Quinary
20422302230
6
Senary
2040201100
8
Octal
121157674
10
Decimal
21290940
12
Duodecimal
7169190
16
Hexadecimal
144dfbc
20
Vigesimal
6d1770
36
Base36
coc70
md5
0deb67f128b43786ce7b85b81ee4dfdd
sha1
d745a65eee15ccc47ad53db7c3a1bbdd8218884d
sha256
e8bb7dbdaa8267b58ab3ddc7882b1c073bb3b34c00fc5e2885c472357c6c2b11
sha512
08ba0e4f9b4a4030fd6babb209f4d20b424560499a48ead64c7aa0e86ddabc337dbd16833fb478a7276c76a1d46c11ef5614f8487a2e5dec1a1cb82249213c3d
ripemd-160
e13e3dc15a6f36b88d5a1eb405dfa7babcd8de3e
Diameter
42581880
Circumference
133774921.38404
Area
1.4240969123462E+15
Volume
4.042714921993E+22
Surface area
5.6963876493847E+15
Circumference
133774921.38404
Perimeter
85163760
Area
453304126083600
Diagonal
30109936.103672
Surface area
2719824756501600
Volume
9.6512709501984E+21
Space diagonal
36876989.820901
Perimeter
63872820
Area
1.9628644441435E+14
Altitude
18438494.91045
Surface area
1.9628644441435E+14
Volume
1.1374131893257E+21
Height
10036645.367891