21977215 is an odd 8-digits composite number following 21977214
and preceding 21977216 . In scientific notation, it is written as 2.1977215 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 32 positive divisors.
There are 15375360 positive integers (up to 21977215) that are relatively prime to 21977215.
21977215 has 32 divisors, whose sum is 29937600
The reverse of 21977215 is 51277912
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million nine hundred seventy-seven thousand two hundred fifteen
Scientific notation
2.1977215 × 10^7
Engineering notation
2.1977215 × 10^6
Prime Factorization
5 × 13 × 29 × 131 × 89
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21977215
Product of the distinct prime numbers
The prime factorization of 21977215 is 5 × 13 × 29 × 131 × 89.
Since it has a total of 5 prime factors.
8 , 8 , 53 , 53 , 427 , 426 , 4508 , 240 , 98076 , 40290 , 104611 , 238732 , 2482509 , 5621517 , 81891658 , 88200037 , 670265043 , 332243759 , 7765149302 , 4730846434
n×2
43954430
n×3
65931645
n×4
87908860
n×5
109886075
n÷2
10988607.5
n÷3
7325738.3333333
n÷3
5494303.75
n÷5
4395443
n2
482997979156225
n3
1.0614950432482E+22
n4
2.33287047869E+29
n5
5.1269996077322E+36
2 √n
4687.9862414474
3 √n
280.10716561146
4 √n
68.468870601518
5 √n
29.403195489669
1 , 5 , 13 , 29 , 65 , 89 , 131 , 145 , 377 , 445 , 655 , 1157 , 1703 , 1885 , 2581 , 3799 , 5785 , 8515 , 11659 , 12905 , 18995 , 33553 , 49387 , 58295 , 151567 , 167765 , 246935 , 338111 , 757835 , 1690555 , 4395443 , 21977215
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21977214
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21977215 can be divided by 32 positive divisors.
The sum of these divisors (counting 21977215) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011110101100001111111
3
Ternary
1112100120001221
4
Quaternary
1103311201333
5
Quinary
21111232330
6
Senary
2103014211
8
Octal
123654177
10
Decimal
21977215
12
Duodecimal
743a367
16
Hexadecimal
14f587f
20
Vigesimal
6h730f
36
Base36
d31q7
md5
330a93861c5e21510b2ab88997f178f0
sha1
ffbcc75c86c96b898f72118071e739db05f6f7de
sha256
20ba4fa42b8c3af5ef5e5dd17ad5780704a4e24f4fabf04cadbec6f1e1524909
sha512
27d223355beee0d11e196b7eaa36b57a58163af2c69e9bf3b23d69379baa5d7c9c2be7d617eb60797fb62eda01e5eeb0b0dbdd0952ee2132ec9585b4f6278957
ripemd-160
c9d31b87153300e0eb472d16cecd18a1b4c02fea
Diameter
43954430
Circumference
138086914.38073
Area
1.5173829030159E+15
Volume
4.4463800395873E+22
Surface area
6.0695316120636E+15
Circumference
138086914.38073
Perimeter
87908860
Area
482997979156225
Diagonal
31080475.516189
Surface area
2897987874937350
Volume
1.0614950432482E+22
Space diagonal
38065652.988865
Perimeter
65931645
Area
2.0914425996292E+14
Altitude
19032826.494432
Surface area
2.0914425996292E+14
Volume
1.2509839054612E+21
Height
10360158.505396