19985955 is an odd 8-digits composite number following 19985954
and preceding 19985956 . In scientific notation, it is written as 1.9985955 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors.
There are 9521280 positive integers (up to 19985955) that are relatively prime to 19985955.
19985955 has 32 divisors, whose sum is 35493120
The reverse of 19985955 is 55958991
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
nineteen million nine hundred eighty-five thousand nine hundred fifty-five
Scientific notation
1.9985955 × 10^7
Engineering notation
1.9985955 × 10^6
Prime Factorization
5 × 3 × 11 × 59 × 2053
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
19985955
Product of the distinct prime numbers
The prime factorization of 19985955 is 5 × 3 × 11 × 59 × 2053.
Since it has a total of 5 prime factors.
5 , 1 , 94 , 73 , 569 , 509 , 9980 , 5620 , 28535 , 79846 , 252943 , 307688 , 708654 , 2788643 , 53086495 , 12685329 , 280552013 , 318940228 , 2357096486 , 4674416049
n×2
39971910
n×3
59957865
n×4
79943820
n×5
99929775
n÷2
9992977.5
n÷3
6661985
n÷3
4996488.75
n÷5
3997191
n2
399438397262025
n3
7.983157832951E+21
n4
1.5955103320726E+29
n5
3.1887797698837E+36
2 √n
4470.5654004835
3 √n
271.37820678766
4 √n
66.86228683259
5 √n
28.849944435269
1 , 3 , 5 , 11 , 15 , 33 , 55 , 59 , 165 , 177 , 295 , 649 , 885 , 1947 , 2053 , 3245 , 6159 , 9735 , 10265 , 22583 , 30795 , 67749 , 112915 , 121127 , 338745 , 363381 , 605635 , 1332397 , 1816905 , 3997191 , 6661985 , 19985955
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19985954
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19985955 can be divided by 32 positive divisors.
The sum of these divisors (counting 19985955) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100001111011000100011
3
Ternary
1101121101120120
4
Quaternary
1030033120203
5
Quinary
20104022310
6
Senary
1552211323
8
Octal
114173043
10
Decimal
19985955
12
Duodecimal
6839b43
16
Hexadecimal
130f623
20
Vigesimal
64i4hf
36
Base36
bwd9f
md5
73720b7c4bdb1103b770ffec5c9e08e6
sha1
00baf6c7dbbde1ed74f24a81c30f6395435b3c12
sha256
11ec5055da9e6d446d17e72f76f375c5476666f765d1dfc73b771a2ce1ff68b6
sha512
199ae18ab2040bac936234099f6ca063d876c8e20599e2a290693371520662e14994227146e708ca9427b94ad53720d7491b8b4e8a17b744eefe5ce439c1204c
ripemd-160
23cd9bb2f46b64ea1fb125fa0c1707711329ee7c
Diameter
39971910
Circumference
125575458.80595
Area
1.2548727344001E+15
Volume
3.3439773333929E+22
Surface area
5.0194909376002E+15
Circumference
125575458.80595
Perimeter
79943820
Area
399438397262025
Diagonal
28264408.617978
Surface area
2396630383572150
Volume
7.983157832951E+21
Space diagonal
34616689.497785
Perimeter
59957865
Area
1.7296189963793E+14
Altitude
17308344.748893
Surface area
1.7296189963793E+14
Volume
9.4082417316035E+20
Height
9421469.5393261