129771891 is an odd 9-digits composite number following 129771890
and preceding 129771892 . In scientific notation, it is written as 1.29771891 × 10^8.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 86514588 positive integers (up to 129771891) that are relatively prime to 129771891.
129771891 has 4 divisors, whose sum is 144191000
The reverse of 129771891 is 198177921
Previous prime number is 9
Is Prime? no Number parity odd Number length 9 Sum of Digits 45 Digital Root 9
Name
one hundred twenty-nine million seven hundred seventy-one thousand eight hundred ninety-one
Scientific notation
1.29771891 × 10^8
Engineering notation
1.29771891 × 10^6
Prime Factorization
9 × 14419099
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
129771891 Product of the distinct prime numbers
The prime factorization of 129771891 is 9 × 14419099.
Since it has a total of 2 prime factors.
5 , 10 , 90 , 88 , 448 , 557 , 5173 , 6135 , 38988 , 68782 , 143716 , 397867 , 5508603 , 8231505 , 22137357 , 28831445 , 20666521 , 694044511 , 6889243380 , 6885329558
n×2
259543782
n×3
389315673
n×4
519087564
n×5
648859455
n÷2
64885945.5
n÷3
43257297
n÷3
32442972.75
n÷5
25954378.2
n2
16840743693715881
n3
2.1854551549798E+24
n4
2.8361064815743E+32
n5
3.6804690119126E+40
2 √n11391.746617618
3 √n506.28323256921
4 √n106.73212551813
5 √n41.940743646187
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
-129771890 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 129771891 can be divided by 4 positive divisors.
The sum of these divisors (counting 129771891) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101111000010100101110011
3
Ternary
100001012002120100
4
Quaternary
13233002211303
5
Quinary
231210200031
6
Senary
20513243443
8
Octal
757024563
10
Decimal
129771891
12
Duodecimal
37563583
16
Hexadecimal
7bc2973
20
Vigesimal
20b19eb
36
Base36
259gmr
md5
07137c230a2b4c9e91280562a031a566
sha1
94d980b1443bacd6890ea78862cf75724de27301
sha256
5817490d00defadecbc241820345746ac20cb72fa6fd6427c053ee1f9d317398
sha512
fe4b3c77526656e16daac7f0df32eb60d18cc445076b6dac7a7be2eb690a9ac4465aaf63800757856bfc422dcbb4dd4f8645b301b7f258b1c615f7dac1aece0d
ripemd-160
5df7440f0139fbc742d2c80849852b0f31fc275e
Diameter
259543782
Circumference
815380838.81611
Area
5.2906756669166E+16
Volume
9.1544131461795E+24
Surface area
2.1162702667667E+17
Circumference
815380838.81611
Perimeter
519087564
Area
16840743693715881
Diagonal
183525168.267
Surface area
101044462162295286
Volume
2.1854551549798E+24
Space diagonal
224771508.60629
Perimeter
389315673
Area
7.2922559286903E+15
Altitude
112385754.30315
Surface area
7.2922559286903E+15
Volume
2.5755836001089E+23
Height
61175056.089001