129847981 is an odd 9-digits composite number following 129847980
and preceding 129847982 . In scientific notation, it is written as 1.29847981 × 10^8.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 126746928 positive integers (up to 129847981) that are relatively prime to 129847981.
129847981 has 8 divisors, whose sum is 132963840
The reverse of 129847981 is 189748921
Previous prime number is 397
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred twenty-nine million eight hundred forty-seven thousand nine hundred eighty-one
Scientific notation
1.29847981 × 10^8
Engineering notation
1.29847981 × 10^6
Prime Factorization
47 × 397 × 6959
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
129847981
Product of the distinct prime numbers
The prime factorization of 129847981 is 47 × 397 × 6959.
Since it has a total of 3 prime factors.
3 , 1 , 4 , 66 , 92 , 446 , 2162 , 6143 , 28394 , 70726 , 980426 , 275049 , 4300650 , 3292266 , 37967676 , 15394924 , 555190721 , 662826987 , 1479014678 , 8761787915
n×2
259695962
n×3
389543943
n×4
519391924
n×5
649239905
n÷2
64923990.5
n÷3
43282660.333333
n÷3
32461995.25
n÷5
25969596.2
n2
16860498169776361
n3
2.1893016459997E+24
n4
2.8427639853303E+32
n5
3.6912716395466E+40
2 √n
11395.085826794
3 √n
506.38216402028
4 √n
106.74776731526
5 √n
41.945660771088
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
-129847980
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 129847981 can be divided by 8 positive divisors.
The sum of these divisors (counting 129847981) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101111010101001010101101
3
Ternary
100001022221221111
4
Quaternary
13233111022231
5
Quinary
231220113411
6
Senary
20515032021
8
Octal
757251255
10
Decimal
129847981
12
Duodecimal
3759b611
16
Hexadecimal
7bd52ad
20
Vigesimal
20bajj1
36
Base36
25b3cd
md5
216bc42a747c9c1eb492b819c143e71f
sha1
534910a23894406b78cfef4bace57524f5ae1aa5
sha256
032ac134f8d311d70e33289059e0281809da90fb3b0f5c3037462a30e9bfc321
sha512
13512fa7c6afd7469598b15fb073137c1e7c670edb665bc22aaf5ae6c465425f424ed95f4f23206dd3e76f07672cb5e84f7c36ca1c4b8f0f97c9aa462f0656df
ripemd-160
decf80a6d4ff29e137abd6bff8ac679d4db8cea6
Diameter
259695962
Circumference
815858926.38613
Area
5.2968817186034E+16
Volume
9.1705252900861E+24
Surface area
2.1187526874413E+17
Circumference
815858926.38613
Perimeter
519391924
Area
16860498169776361
Diagonal
183632775.77696
Surface area
101162989018658166
Volume
2.1893016459997E+24
Space diagonal
224903300.35224
Perimeter
389543943
Area
7.3008098677437E+15
Altitude
112451650.17612
Surface area
7.3008098677437E+15
Volume
2.5801167332487E+23
Height
61210925.258988