21997105 is an odd 8-digits composite number following 21997104
and preceding 21997106 . In scientific notation, it is written as 2.1997105 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 15998400 positive integers (up to 21997105) that are relatively prime to 21997105.
21997105 has 8 divisors, whose sum is 26432064
The reverse of 21997105 is 50179912
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million nine hundred ninety-seven thousand one hundred five
Scientific notation
2.1997105 × 10^7
Engineering notation
2.1997105 × 10^6
Prime Factorization
871 × 5 × 5051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21997105
Product of the distinct prime numbers
The prime factorization of 21997105 is 871 × 5 × 5051.
Since it has a total of 3 prime factors.
4 , 10 , 98 , 99 , 552 , 399 , 6931 , 9887 , 84301 , 72693 , 732015 , 607073 , 5633709 , 3147439 , 51871021 , 53721166 , 609753273 , 391020530 , 8401942781 , 7706325765
n×2
43994210
n×3
65991315
n×4
87988420
n×5
109985525
n÷2
10998552.5
n÷3
7332368.3333333
n÷3
5499276.25
n÷5
4399421
n2
483872628381025
n3
1.0643797013123E+22
n4
2.3413272049636E+29
n5
5.1502420366941E+36
2 √n
4690.1071416333
3 √n
280.19164176295
4 √n
68.484356911877
5 √n
29.408515708434
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
-21997104
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 21997105 can be divided by 8 positive divisors.
The sum of these divisors (counting 21997105) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111010011000110001
3
Ternary
1112101120100121
4
Quaternary
1103322120301
5
Quinary
21112401410
6
Senary
2103250241
8
Octal
123723061
10
Decimal
21997105
12
Duodecimal
7449981
16
Hexadecimal
14fa631
20
Vigesimal
6h9cf5
36
Base36
d3h2p
md5
b9364941b797e41c6d947e760e01f20a
sha1
a56fb304d4d257659e481de6968a0450eadc847e
sha256
ec5ff1179d0cc5b92366ac9b2d168a52b2eea6fd241b565da5121f28a25df18e
sha512
b4187e69d915b48b1806e2fe57d2fd7a410bfefa4aa14d34e1f471c278cac42d38bdce1d9e7d7a761e15ec1be77dbb00e6cfd874a12264d8ed53b12cb4e50aba
ripemd-160
b5a025651e7c746ce34bd6db485c8890cd5a4e26
Diameter
43994210
Circumference
138211886.93649
Area
1.520130694595E+15
Volume
4.4584632670306E+22
Surface area
6.08052277838E+15
Circumference
138211886.93649
Perimeter
87988420
Area
483872628381025
Diagonal
31108604.223945
Surface area
2903235770286150
Volume
1.0643797013123E+22
Space diagonal
38100103.479427
Perimeter
65991315
Area
2.0952299418696E+14
Altitude
19050051.739714
Surface area
2.0952299418696E+14
Volume
1.2543835075921E+21
Height
10369534.741315