21931380 is an even 8-digits composite number following 21931379
and preceding 21931381 . In scientific notation, it is written as 2.1931380 × 10^7.
The sum of its digits is 27. It has a total of 6 prime factors and 36 positive divisors.
There are 5626368 positive integers (up to 21931380) that are relatively prime to 21931380.
21931380 has 36 divisors, whose sum is 40774860
The reverse of 21931380 is 08313912
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million nine hundred thirty-one thousand three hundred eighty
Scientific notation
2.1931380 × 10^7
Engineering notation
2.1931380 × 10^6
Prime Factorization
2 × 2 × 45 × 37 × 37 × 89
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
296370
Product of the distinct prime numbers
The prime factorization of 21931380 is 2 × 2 × 45 × 37 × 37 × 89.
Since it has a total of 6 prime factors.
1 , 1 , 90 , 23 , 187 , 938 , 7836 , 4897 , 85752 , 63029 , 863335 , 431283 , 5921394 , 5001085 , 25347236 , 67649220 , 740416986 , 77222485 , 3377168873 , 8180532053
n×2
43862760
n×3
65794140
n×4
87725520
n×5
109656900
n÷2
10965690
n÷3
7310460
n÷3
5482845
n÷5
4386276
n2
480985428704400
n3
1.0548674211379E+22
n4
2.3134698262596E+29
n5
5.0737585878232E+36
2 √n
4683.0951303598
3 √n
279.91230246749
4 √n
68.433143507805
5 √n
29.390920766425
1 , 2 , 4 , 37 , 45 , 74 , 89 , 90 , 148 , 178 , 180 , 356 , 1369 , 1665 , 2738 , 3293 , 3330 , 4005 , 5476 , 6586 , 6660 , 8010 , 13172 , 16020 , 61605 , 121841 , 123210 , 148185 , 243682 , 246420 , 296370 , 487364 , 592740 , 5482845 , 10965690 , 21931380
36 divisors
τ
Total Divisors
36
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931379
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.027777777777778
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
36
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931380 can be divided by 36 positive divisors.
The sum of these divisors (counting 21931380) is 1, the average is 0.027777777777778.
Base
System
Value
2
Binary
1010011101010010101110100
3
Ternary
1112021020012100
4
Quaternary
1103222111310
5
Quinary
21103301010
6
Senary
2102022100
8
Octal
123522564
10
Decimal
21931380
12
Duodecimal
7417930
16
Hexadecimal
14ea574
20
Vigesimal
6h1890
36
Base36
d22d0
md5
37707cf55ac9609456699e2d4aafdd31
sha1
8197b0d431f5bbc9546f7b8ef1e514d009a8a444
sha256
815f8383b62aaf80703e8b3a174413166b596aac188a20796c58592fbc9efea9
sha512
ee7c2fdafd4fb78f0034c038452bf3e08d31822921b561997328e8bda522280de948a8edfb354d1c648cedecc67c48bb1ab87016462fe4759d3daf0939eaa82e
ripemd-160
fff3dc2f5b00656ef903a59f70122f7e4825f871
Diameter
43862760
Circumference
137798924.58217
Area
1.5110602893015E+15
Volume
4.4186183210108E+22
Surface area
6.0442411572059E+15
Circumference
137798924.58217
Perimeter
87725520
Area
480985428704400
Diagonal
31015655.037558
Surface area
2885912572226400
Volume
1.0548674211379E+22
Space diagonal
37986264.4401
Perimeter
65794140
Area
2.0827280005408E+14
Altitude
18993132.22005
Surface area
2.0827280005408E+14
Volume
1.243173177899E+21
Height
10338551.679186