21297761 is an odd 8-digits composite number following 21297760
and preceding 21297762 . In scientific notation, it is written as 2.1297761 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20936724 positive integers (up to 21297761) that are relatively prime to 21297761.
21297761 has 4 divisors, whose sum is 21658800
The reverse of 21297761 is 16779212
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million two hundred ninety-seven thousand seven hundred sixty-one
Scientific notation
2.1297761 × 10^7
Engineering notation
2.1297761 × 10^6
Prime Factorization
59 × 360979
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21297761
Product of the distinct prime numbers
The prime factorization of 21297761 is 59 × 360979.
Since it has a total of 2 prime factors.
2 , 3 , 28 , 48 , 509 , 241 , 8207 , 2604 , 72473 , 93853 , 99424 , 618828 , 6221283 , 3005556 , 77141897 , 76664581 , 53307804 , 45582725 , 760860816 , 8600541675
n×2
42595522
n×3
63893283
n×4
85191044
n×5
106488805
n÷2
10648880.5
n÷3
7099253.6666667
n÷3
5324440.25
n÷5
4259552.2
n2
453594623613121
n3
9.6605498845972E+21
n4
2.0574808257073E+29
n5
4.3819734887996E+36
2 √n
4614.9497288703
3 √n
277.19027099001
4 √n
67.933421295194
5 √n
29.219096976696
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
-21297760
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 21297761 can be divided by 4 positive divisors.
The sum of these divisors (counting 21297761) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001111101001100001
3
Ternary
1111002001000222
4
Quaternary
1101033221201
5
Quinary
20423012021
6
Senary
2040252425
8
Octal
121175141
10
Decimal
21297761
12
Duodecimal
7171115
16
Hexadecimal
144fa61
20
Vigesimal
6d2481
36
Base36
cohgh
md5
b3a577b92d4d67e50e09083983ceeb0a
sha1
0ebd147387e31d69411fea929ced1a7a1c000414
sha256
1390fa2b41e02b2a4584de969e3da7528cd34cbade7c0f7e6e3f548f8e487b02
sha512
225c54a902bce70875605c83f1b0d97dbbaedfa06971c64a3cc7331a5609dd4d34d0eb4d136c60de18c73c495c3fea650060060093bd57efdf5efd4d603107ab
ripemd-160
88cbb4ca290cce55a69bdc45010d6f291e94e331
Diameter
42595522
Circumference
133817778.99102
Area
1.4250095372508E+15
Volume
4.0466016729451E+22
Surface area
5.7000381490032E+15
Circumference
133817778.99102
Perimeter
85191044
Area
453594623613121
Diagonal
30119582.454381
Surface area
2721567741678726
Volume
9.6605498845972E+21
Space diagonal
36888804.139459
Perimeter
63893283
Area
1.964122335345E+14
Altitude
18444402.069729
Surface area
1.964122335345E+14
Volume
1.1385067222316E+21
Height
10039860.818127