20131979 is an odd 8-digits composite number following 20131978
and preceding 20131980 . In scientific notation, it is written as 2.0131979 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17012520 positive integers (up to 20131979) that are relatively prime to 20131979.
20131979 has 8 divisors, whose sum is 23332608
The reverse of 20131979 is 97913102
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred thirty-one thousand nine hundred seventy-nine
Scientific notation
2.0131979 × 10^7
Engineering notation
2.0131979 × 10^6
Prime Factorization
7 × 71 × 40507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20131979
Product of the distinct prime numbers
The prime factorization of 20131979 is 7 × 71 × 40507.
Since it has a total of 3 prime factors.
6 , 3 , 39 , 76 , 295 , 605 , 7539 , 5153 , 91718 , 85486 , 691741 , 571621 , 6982679 , 1213144 , 46471548 , 89666421 , 544361355 , 153765970 , 1367884977 , 8783776148
n×2
40263958
n×3
60395937
n×4
80527916
n×5
100659895
n÷2
10065989.5
n÷3
6710659.6666667
n÷3
5032994.75
n÷5
4026395.8
n2
405296578456441
n3
8.1594222062569E+21
n4
1.642653165085E+29
n5
3.3069859023774E+36
2 √n
4486.8673927363
3 √n
272.03752996419
4 √n
66.984083129773
5 √n
28.891979214059
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
-20131978
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 20131979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20131979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110011000010001011
3
Ternary
1101212210212212
4
Quaternary
1030303002023
5
Quinary
20123210404
6
Senary
1555255335
8
Octal
114630213
10
Decimal
20131979
12
Duodecimal
68aa54b
16
Hexadecimal
133308b
20
Vigesimal
65g9ij
36
Base36
bzhxn
md5
ab0571aae874d086ad9b513eb11cceeb
sha1
525056c7e46e5d6ad7cd25f2add93b93fcd450a6
sha256
00ffe88300875375ac16e000836a86ef8d1dc4d2ad6a6050cc446430746dec52
sha512
b05bf166c0779aafb9d804d811be7f74fb4b5f1792afd789d6d84e0b18eb74bae97db452e377a526e491cccf134682968a8a0fb54c3a30790d75f1da8ee4dfc3
ripemd-160
c3ffed0ff0f88e179e2b330634a25cd766ecd6d5
Diameter
40263958
Circumference
126492954.65725
Area
1.2732767534038E+15
Volume
3.4178107814286E+22
Surface area
5.0931070136153E+15
Circumference
126492954.65725
Perimeter
80527916
Area
405296578456441
Diagonal
28470917.73921
Surface area
2431779470738646
Volume
8.1594222062569E+21
Space diagonal
34869610.48491
Perimeter
60395937
Area
1.754985665051E+14
Altitude
17434805.242455
Surface area
1.754985665051E+14
Volume
9.6159712876806E+20
Height
9490305.9130701