21949105 is an odd 8-digits composite number following 21949104
and preceding 21949106 . In scientific notation, it is written as 2.1949105 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 17559280 positive integers (up to 21949105) that are relatively prime to 21949105.
21949105 has 4 divisors, whose sum is 26338932
The reverse of 21949105 is 50194912
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million nine hundred forty-nine thousand one hundred five
Scientific notation
2.1949105 × 10^7
Engineering notation
2.1949105 × 10^6
Prime Factorization
5 × 4389821
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21949105
Product of the distinct prime numbers
The prime factorization of 21949105 is 5 × 4389821.
Since it has a total of 2 prime factors.
4 , 5 , 82 , 66 , 842 , 212 , 8920 , 1007 , 52030 , 98290 , 92798 , 735636 , 2470077 , 6434598 , 76162098 , 2626537 , 735110678 , 233807871 , 4510313267 , 6666910382
n×2
43898210
n×3
65847315
n×4
87796420
n×5
109745525
n÷2
10974552.5
n÷3
7316368.3333333
n÷3
5487276.25
n÷5
4389821
n2
481763210301025
n3
1.0574271288034E+22
n4
2.3209579079955E+29
n5
5.0942948823173E+36
2 √n
4684.9871931522
3 √n
279.98769078541
4 √n
68.446966281583
5 √n
29.395669995499
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
-21949104
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 21949105 can be divided by 4 positive divisors.
The sum of these divisors (counting 21949105) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101110101010110001
3
Ternary
1112022010111211
4
Quaternary
1103232222301
5
Quinary
21104332410
6
Senary
2102240121
8
Octal
123565261
10
Decimal
21949105
12
Duodecimal
7426041
16
Hexadecimal
14eeab1
20
Vigesimal
6h3cf5
36
Base36
d2g1d
md5
8d0edfc98ce7eae6081716c52acc4ea0
sha1
cd0b65e0634299456942e94b97b935a68cf29ca1
sha256
698a0aefd73e51fe0d33b72b3944c9ed28f37a2e1886eca810956ac0da3f8c92
sha512
ef7a19cd8607db262da44831375e402cd7129db9e8ab4ae346fe52808fc0daf9d89191a70bdb3086f5934f86d27a529938609c9afab72f1c6f60b5fcf27e0749
ripemd-160
f244118947c5adf0f12d0320fa503b9827f0b219
Diameter
43898210
Circumference
137910294.04174
Area
1.5135037622515E+15
Volume
4.4293403994072E+22
Surface area
6.0540150490061E+15
Circumference
137910294.04174
Perimeter
87796420
Area
481763210301025
Diagonal
31040721.972951
Surface area
2890579261806150
Volume
1.0574271288034E+22
Space diagonal
38016965.040664
Perimeter
65847315
Area
2.0860958936472E+14
Altitude
19008482.520332
Surface area
2.0860958936472E+14
Volume
1.2461898223125E+21
Height
10346907.324317