19906749 is an odd 8-digits composite number following 19906748
and preceding 19906750 . In scientific notation, it is written as 1.9906749 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 13271148 positive integers (up to 19906749) that are relatively prime to 19906749.
19906749 has 8 divisors, whose sum is 29491520
The reverse of 19906749 is 94760991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
nineteen million nine hundred six thousand seven hundred forty-nine
Scientific notation
1.9906749 × 10^7
Engineering notation
1.9906749 × 10^6
Prime Factorization
9 × 3 × 737287
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19906749
Product of the distinct prime numbers
The prime factorization of 19906749 is 9 × 3 × 737287.
Since it has a total of 3 prime factors.
10 , 1 , 46 , 87 , 796 , 605 , 521 , 7681 , 42388 , 39622 , 96211 , 841873 , 9275799 , 1334485 , 56830785 , 80171503 , 434550198 , 589375383 , 9588470356 , 6991165495
n×2
39813498
n×3
59720247
n×4
79626996
n×5
99533745
n÷2
9953374.5
n÷3
6635583
n÷3
4976687.25
n÷5
3981349.8
n2
396278655749001
n3
7.8886197340528E+21
n4
1.5703677300224E+29
n5
3.1260916239255E+36
2 √n
4461.6979951583
3 √n
271.01923403015
4 √n
66.795942954332
5 √n
28.82704115409
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
-19906748
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 19906749 can be divided by 8 positive divisors.
The sum of these divisors (counting 19906749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011111100000010111101
3
Ternary
1101110100221000
4
Quaternary
1023330002331
5
Quinary
20044003444
6
Senary
1550400513
8
Octal
113740275
10
Decimal
19906749
12
Duodecimal
6800139
16
Hexadecimal
12fc0bd
20
Vigesimal
6486h9
36
Base36
buo59
md5
a81aa2f1af294b906c88b9ee4a68f05d
sha1
7bbafd55b71fcde67c071a779ff1c65ab6681d00
sha256
7c4952f0e166999e9b79b79c6193af40f5b013fe5019ac70fc207c47a138fc42
sha512
8248cdf2b0a10d3df218bc00d83257443f9bf03e33bf655444609d538e7433a5c88b0e57f752b4b087026e42cf245a15caa0d8a034197ae6fcd498d700e8e389
ripemd-160
38b160bdbfc86eab6aea5e60195b27fa822325f1
Diameter
39813498
Circumference
125077792.83051
Area
1.2449461136755E+15
Volume
3.3043773071285E+22
Surface area
4.979784454702E+15
Circumference
125077792.83051
Perimeter
79626996
Area
396278655749001
Diagonal
28152394.418557
Surface area
2377671934494006
Volume
7.8886197340528E+21
Space diagonal
34479500.681521
Perimeter
59720247
Area
1.7159369142809E+14
Altitude
17239750.34076
Surface area
1.7159369142809E+14
Volume
9.2968275135846E+20
Height
9384131.4728523