19902649 is an odd 8-digits composite number following 19902648
and preceding 19902650 . In scientific notation, it is written as 1.9902649 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 18112080 positive integers (up to 19902649) that are relatively prime to 19902649.
19902649 has 8 divisors, whose sum is 21736512
The reverse of 19902649 is 94620991
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
nineteen million nine hundred two thousand six hundred forty-nine
Scientific notation
1.9902649 × 10^7
Engineering notation
1.9902649 × 10^6
Prime Factorization
13 × 71 × 21563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19902649
Product of the distinct prime numbers
The prime factorization of 19902649 is 13 × 71 × 21563.
Since it has a total of 3 prime factors.
8 , 2 , 40 , 22 , 127 , 176 , 6338 , 6838 , 98059 , 90240 , 644333 , 360327 , 4896817 , 7019698 , 73722838 , 77752412 , 174800574 , 82253819 , 9347448956 , 2239592781
n×2
39805298
n×3
59707947
n×4
79610596
n×5
99513245
n÷2
9951324.5
n÷3
6634216.3333333
n÷3
4975662.25
n÷5
3980529.8
n2
396115437217201
n3
7.8837465104155E+21
n4
1.5690743960177E+29
n5
3.1228736958828E+36
2 √n
4461.2385051687
3 √n
271.00062635168
4 √n
66.792503360547
5 √n
28.825853611042
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
-19902648
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 19902649 can be divided by 8 positive divisors.
The sum of these divisors (counting 19902649) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011111011000010111001
3
Ternary
1101110011022011
4
Quaternary
1023323002321
5
Quinary
20043341044
6
Senary
1550325521
8
Octal
113730271
10
Decimal
19902649
12
Duodecimal
67b98a1
16
Hexadecimal
12fb0b9
20
Vigesimal
647gc9
36
Base36
bukzd
md5
01322fb38907796b1050807c4462963f
sha1
8b647d9fe1c26f2ec5526df091f8a8c50ae96b7c
sha256
131ac14d2e3f83d9334b98ca2b2b5761efbe2474800272baab573de680f1d63b
sha512
c3d5802866a1db461e53e6f30331eebf0bd658db04e798fffe8f0b43b46ff05f0ac9d7feea1e63a79823285e2fa2be247ba1d12ea13724e1d30cf3c2ca71fcfb
ripemd-160
789cad3883deb9590382a49db3b79d38b51b8178
Diameter
39805298
Circumference
125052031.77075
Area
1.2444333475351E+15
Volume
3.3023360159847E+22
Surface area
4.9777333901403E+15
Circumference
125052031.77075
Perimeter
79610596
Area
396115437217201
Diagonal
28146596.142951
Surface area
2376692623303206
Volume
7.8837465104155E+21
Space diagonal
34472399.27321
Perimeter
59707947
Area
1.7152301573064E+14
Altitude
17236199.636605
Surface area
1.7152301573064E+14
Volume
9.291084364451E+20
Height
9382198.7143171