21931407 is an odd 8-digits composite number following 21931406
and preceding 21931408 . In scientific notation, it is written as 2.1931407 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 14620932 positive integers (up to 21931407) that are relatively prime to 21931407.
21931407 has 6 divisors, whose sum is 31678712
The reverse of 21931407 is 70413912
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million nine hundred thirty-one thousand four hundred seven
Scientific notation
2.1931407 × 10^7
Engineering notation
2.1931407 × 10^6
Prime Factorization
3 × 3 × 2436823
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7310469
Product of the distinct prime numbers
The prime factorization of 21931407 is 3 × 3 × 2436823.
Since it has a total of 3 prime factors.
10 , 9 , 96 , 16 , 292 , 260 , 9754 , 6285 , 66290 , 8522 , 478232 , 674857 , 7479866 , 3113327 , 3208680 , 74931799 , 390157526 , 149769780 , 8169312975 , 7564229599
n×2
43862814
n×3
65794221
n×4
87725628
n×5
109657035
n÷2
10965703.5
n÷3
7310469
n÷3
5482851.75
n÷5
4386281.4
n2
480986612999649
n3
1.0548713171247E+22
n4
2.3134812188487E+29
n5
5.0737898197428E+36
2 √n
4683.0980130678
3 √n
279.91241733531
4 √n
68.433164570023
5 √n
29.390928003128
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931406
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931407 can be divided by 6 positive divisors.
The sum of these divisors (counting 21931407) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010011101010010110001111
3
Ternary
1112021020020100
4
Quaternary
1103222112033
5
Quinary
21103301112
6
Senary
2102022143
8
Octal
123522617
10
Decimal
21931407
12
Duodecimal
7417953
16
Hexadecimal
14ea58f
20
Vigesimal
6h18a7
36
Base36
d22dr
md5
aacc35e4270899f5c1b5b08958729b57
sha1
738b3423e7c23bb4adf2ace489de5e2fcb214744
sha256
8152e6f97deab5dce181e889462cf310e326768867fb759465a7d2e5be1c698a
sha512
24182b904d1320199120f5740a62db47c43c72e7d1b701e410d553a53b36bb094fa9b19310244081809633f6bbc9571e7e5ffc83c31856d0deb795fe95802c4a
ripemd-160
2242187efd8e1635eb11c104e1596439db6774f5
Diameter
43862814
Circumference
137799094.22818
Area
1.5110640098747E+15
Volume
4.418634640482E+22
Surface area
6.0442560394989E+15
Circumference
137799094.22818
Perimeter
87725628
Area
480986612999649
Diagonal
31015693.221324
Surface area
2885919677997894
Volume
1.0548713171247E+22
Space diagonal
37986311.205472
Perimeter
65794221
Area
2.0827331286897E+14
Altitude
18993155.602736
Surface area
2.0827331286897E+14
Volume
1.2431777693634E+21
Height
10338564.407108