19985979 is an odd 8-digits composite number following 19985978
and preceding 19985980 . In scientific notation, it is written as 1.9985979 × 10^7.
The sum of its digits is 57. It has a total of 5 prime factors and 32 positive divisors.
There are 11664000 positive integers (up to 19985979) that are relatively prime to 19985979.
19985979 has 32 divisors, whose sum is 30220288
The reverse of 19985979 is 97958991
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
nineteen million nine hundred eighty-five thousand nine hundred seventy-nine
Scientific notation
1.9985979 × 10^7
Engineering notation
1.9985979 × 10^6
Prime Factorization
3 × 13 × 31 × 61 × 271
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
19985979
Product of the distinct prime numbers
The prime factorization of 19985979 is 3 × 13 × 31 × 61 × 271.
Since it has a total of 5 prime factors.
10 , 1 , 65 , 15 , 960 , 892 , 2250 , 464 , 96311 , 77915 , 496877 , 946063 , 4744717 , 5846545 , 75605974 , 23311183 , 117229091 , 422635311 , 1434469576 , 6447737940
n×2
39971958
n×3
59957937
n×4
79943916
n×5
99929895
n÷2
9992989.5
n÷3
6661993
n÷3
4996494.75
n÷5
3997195.8
n2
399439356588441
n3
7.9831865925501E+21
n4
1.5955179959179E+29
n5
3.1887989160537E+36
2 √n
4470.5680847069
3 √n
271.37831541518
4 √n
66.862306905363
5 √n
28.849951364118
1 , 3 , 13 , 31 , 39 , 61 , 93 , 183 , 271 , 403 , 793 , 813 , 1209 , 1891 , 2379 , 3523 , 5673 , 8401 , 10569 , 16531 , 24583 , 25203 , 49593 , 73749 , 109213 , 214903 , 327639 , 512461 , 644709 , 1537383 , 6661993 , 19985979
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
-19985978
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 19985979 can be divided by 32 positive divisors.
The sum of these divisors (counting 19985979) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100001111011000111011
3
Ternary
1101121101121110
4
Quaternary
1030033120323
5
Quinary
20104022404
6
Senary
1552211403
8
Octal
114173073
10
Decimal
19985979
12
Duodecimal
6839b63
16
Hexadecimal
130f63b
20
Vigesimal
64i4ij
36
Base36
bwda3
md5
9e746bcea45dbf2e0bc37064f284202c
sha1
f22fadbacffbe70281a9adb81eedbe0c7773b334
sha256
eaafbddd7e958821ff1fa463d456aacf3ff0cf5bb8a142fe61ad3ce4aae70a9c
sha512
57b54c041a37630ba0f69b851e07288347ba7b8c7306c30b351ac12c60831cd99225fc915231aaa98671bf6c3bf9aed6a719232a0fb419210769f0a2604928e4
ripemd-160
29c5c1b8c9e9a136e497c82dd3144b9103ec4958
Diameter
39971958
Circumference
125575609.6024
Area
1.2548757482129E+15
Volume
3.3439893801856E+22
Surface area
5.0195029928515E+15
Circumference
125575609.6024
Perimeter
79943916
Area
399439356588441
Diagonal
28264442.559104
Surface area
2396636139530646
Volume
7.9831865925501E+21
Space diagonal
34616731.067005
Perimeter
59957937
Area
1.7296231503845E+14
Altitude
17308365.533502
Surface area
1.7296231503845E+14
Volume
9.4082756251162E+20
Height
9421480.8530346