20081979 is an odd 8-digits composite number following 20081978
and preceding 20081980 . In scientific notation, it is written as 2.0081979 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 13387968 positive integers (up to 20081979) that are relatively prime to 20081979.
20081979 has 4 divisors, whose sum is 20825784
The reverse of 20081979 is 97918002
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eighty-one thousand nine hundred seventy-nine
Scientific notation
2.0081979 × 10^7
Engineering notation
2.0081979 × 10^6
Prime Factorization
27 × 743777
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20081979
Product of the distinct prime numbers
The prime factorization of 20081979 is 27 × 743777.
Since it has a total of 2 prime factors.
6 , 9 , 20 , 8 , 962 , 369 , 46 , 5018 , 37617 , 48032 , 7068 , 217484 , 398190 , 8524429 , 61748008 , 67071268 , 164077367 , 741754442 , 1945184486 , 6776109131
n×2
40163958
n×3
60245937
n×4
80327916
n×5
100409895
n÷2
10040989.5
n÷3
6693993
n÷3
5020494.75
n÷5
4016395.8
n2
403285880556441
n3
8.098778584331E+21
n4
1.6263950145618E+29
n5
3.2661230528136E+36
2 √n
4481.2921127728
3 √n
271.81213148002
4 √n
66.942453740305
5 √n
28.877613649386
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
-20081978
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 20081979 can be divided by 4 positive divisors.
The sum of these divisors (counting 20081979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100110110100111011
3
Ternary
1101210021022000
4
Quaternary
1030212310323
5
Quinary
20120110404
6
Senary
1554232043
8
Octal
114466473
10
Decimal
20081979
12
Duodecimal
6885623
16
Hexadecimal
1326d3b
20
Vigesimal
65a4ij
36
Base36
byfcr
md5
11af4deb6916509ed4ba21b973473603
sha1
fa51ed52a152da1c56c079f811bcff16c8aef26b
sha256
ba166dd39dbe1297aeaef7750e4536da048dfaf85fc7f495a0d8d2f27796ee68
sha512
41f856737e76fe9bd21c2aaea6afc32e91e1c323d0dbc6817f4a0bdb1d6745d794321e09b4580dca27cbce9ff598447dd2469942d8662f557e5f8a5d8284c475
ripemd-160
a71a741208df8deb9c6f62820e763fe5b7363044
Diameter
40163958
Circumference
126178795.39189
Area
1.2669599596526E+15
Volume
3.3924084404779E+22
Surface area
5.0678398386104E+15
Circumference
126178795.39189
Perimeter
80327916
Area
403285880556441
Diagonal
28400207.061092
Surface area
2419715283338646
Volume
8.098778584331E+21
Space diagonal
34783007.944531
Perimeter
60245937
Area
1.7462790877473E+14
Altitude
17391503.972266
Surface area
1.7462790877473E+14
Volume
9.544502093848E+20
Height
9466735.6870306