19909961 is an odd 8-digits composite number following 19909960
and preceding 19909962 . In scientific notation, it is written as 1.9909961 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 19787652 positive integers (up to 19909961) that are relatively prime to 19909961.
19909961 has 4 divisors, whose sum is 20032272
The reverse of 19909961 is 16990991
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred nine thousand nine hundred sixty-one
Scientific notation
1.9909961 × 10^7
Engineering notation
1.9909961 × 10^6
Prime Factorization
163 × 122147
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19909961
Product of the distinct prime numbers
The prime factorization of 19909961 is 163 × 122147.
Since it has a total of 2 prime factors.
4 , 5 , 73 , 11 , 11 , 607 , 4128 , 9650 , 553 , 70521 , 376733 , 249988 , 5969916 , 7003428 , 49667143 , 33677779 , 852711320 , 212506195 , 4128212962 , 6773124056
n×2
39819922
n×3
59729883
n×4
79639844
n×5
99549805
n÷2
9954980.5
n÷3
6636653.6666667
n÷3
4977490.25
n÷5
3981992.2
n2
396406547021521
n3
7.8924388913431E+21
n4
1.5713815052153E+29
n5
3.1286144484957E+36
2 √n
4462.0579332859
3 √n
271.03380977302
4 √n
66.798637211293
5 √n
28.827971356011
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
-19909960
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 19909961 can be divided by 4 positive divisors.
The sum of these divisors (counting 19909961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111100110101001001
3
Ternary
1101110112022222
4
Quaternary
1023330311021
5
Quinary
20044104321
6
Senary
1550423425
8
Octal
113746511
10
Decimal
19909961
12
Duodecimal
6801b75
16
Hexadecimal
12fcd49
20
Vigesimal
648ei1
36
Base36
buqmh
md5
d186d4accd2451bef89dc3339d784f90
sha1
43200bbb50d407267d613e6842697a53a37a3492
sha256
6bb70656498f3073a60d216b175263b814b44e6833199f0a5bdfffb8e59c82d3
sha512
543b61555d3f7a2c6760acc3e4b364a214a699ca9004c6b5d7042b0ad73e8d9bf1d653779931d5e442d71c86f2c70e2e6f2fa497099bf2f8fac214ad7fde762c
ripemd-160
efe03fe64349a0cec7e2bec4129604a706526291
Diameter
39819922
Circumference
125097974.42172
Area
1.2453478959577E+15
Volume
3.3059770719933E+22
Surface area
4.9813915838308E+15
Circumference
125097974.42172
Perimeter
79639844
Area
396406547021521
Diagonal
28156936.872519
Surface area
2378439282129126
Volume
7.8924388913431E+21
Space diagonal
34485064.028715
Perimeter
59729883
Area
1.7164906997355E+14
Altitude
17242532.014357
Surface area
1.7164906997355E+14
Volume
9.3013284336153E+20
Height
9385645.6241731