21490967 is an odd 8-digits composite number following 21490966
and preceding 21490968 . In scientific notation, it is written as 2.1490967 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20797680 positive integers (up to 21490967) that are relatively prime to 21490967.
21490967 has 4 divisors, whose sum is 22184256
The reverse of 21490967 is 76909412
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety thousand nine hundred sixty-seven
Scientific notation
2.1490967 × 10^7
Engineering notation
2.1490967 × 10^6
Prime Factorization
31 × 693257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490967
Product of the distinct prime numbers
The prime factorization of 21490967 is 31 × 693257.
Since it has a total of 2 prime factors.
7 , 3 , 87 , 9 , 97 , 634 , 8492 , 4285 , 37025 , 21228 , 963089 , 622042 , 426525 , 6084217 , 22474516 , 94724766 , 143993908 , 273256553 , 5837932730 , 3872123312
n×2
42981934
n×3
64472901
n×4
85963868
n×5
107454835
n÷2
10745483.5
n÷3
7163655.6666667
n÷3
5372741.75
n÷5
4298193.4
n2
461861662595089
n3
9.9258537493962E+21
n4
2.133161953751E+29
n5
4.5843713153718E+36
2 √n
4635.8350919764
3 √n
278.02594085348
4 √n
68.086967122765
5 √n
29.271918780237
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490966
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490967 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490967) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110100010111
3
Ternary
1111102212001202
4
Quaternary
1101332310113
5
Quinary
21000202332
6
Senary
2044343115
8
Octal
121766427
10
Decimal
21490967
12
Duodecimal
7244a9b
16
Hexadecimal
147ed17
20
Vigesimal
6e6787
36
Base36
csmjb
md5
cfa100a45ecd379675e571b7a95725b2
sha1
183d128e152faceb183a2d7327e5fc28887c2d64
sha256
c4dac12d10184a72ead4ca4196f08f68338cb46d49919ea484f7e4a4ae0177df
sha512
3ecef96c4d92f0960a15962bdab5a8257726562505009a76e0ba4215315631c4d0ce29f8796991a6e3aabc5e3f63942416df7953563de7a94e67ea7006a14d72
ripemd-160
32651dadeb20dbc8adaf7ea123450fcdef52e361
Diameter
42981934
Circumference
135031728.09148
Area
1.4509812061835E+15
Volume
4.1577318959613E+22
Surface area
5.803924824734E+15
Circumference
135031728.09148
Perimeter
85963868
Area
461861662595089
Diagonal
30392816.999913
Surface area
2771169975570534
Volume
9.9258537493962E+21
Space diagonal
37223446.747786
Perimeter
64472901
Area
1.9999196642073E+14
Altitude
18611723.373893
Surface area
1.9999196642073E+14
Volume
1.169773082544E+21
Height
10130938.999971