129647981 is an odd 9-digits prime number following 129647980
and preceding 129647982 . In scientific notation, it is written as 1.29647981 × 10^8.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 129647980 positive integers (up to 129647981) that are relatively prime to 129647981.
129647981 has 2 divisors, whose sum is 129647982
The reverse of 129647981 is 189746921
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 47 Digital Root 2
Name
one hundred twenty-nine million six hundred forty-seven thousand nine hundred eighty-one
Scientific notation
1.29647981 × 10^8
Engineering notation
1.29647981 × 10^6
Prime Factorization
129647981
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
129647981 Product of the distinct prime numbers
The prime factorization of 129647981 is 129647981.
Since it has a total of 1 prime factors.
3 , 8 , 44 , 59 , 409 , 174 , 8231 , 7739 , 26107 , 17304 , 680868 , 794582 , 1235960 , 6632996 , 49505533 , 75032504 , 59245486 , 803233415 , 8697973744 , 8691625645
n×2
259295962
n×3
388943943
n×4
518591924
n×5
648239905
n÷2
64823990.5
n÷3
43215993.666667
n÷3
32411995.25
n÷5
25929596.2
n2
16808598977376361
n3
2.1792009208555E+24
n4
2.8252899958226E+32
n5
3.662931436979E+40
2 √n11386.306732211
3 √n506.12204323904
4 √n106.70663865108
5 √n41.932731335516
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
129647982 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
64823991 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
11386.306776124 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999845736 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 129647981 can be divided by 2 positive divisors.
The sum of these divisors (counting 129647981) is 129647982, the average is 64823991.
Base
System
Value
2
Binary
111101110100100010101101101
3
Ternary
100000221210121002
4
Quaternary
13232210111231
5
Quinary
231142213411
6
Senary
20510450045
8
Octal
756442555
10
Decimal
129647981
12
Duodecimal
37503925
16
Hexadecimal
7ba456d
20
Vigesimal
20a5jj1
36
Base36
256t0t
md5
29849edcf7daf00c0774bbe791be5af3
sha1
c26ebfa6132c9a920c1ae1ea952ee15705186561
sha256
c6add2eed490ae8af8271426692dd1ae171067a79f6688fb4d17f87473d7f86a
sha512
1ba12cb3b67736b00cd7849e8f7adc5d6d1dc771b94074371dcd9ec7108ed16a735bd403eda70bfa23eb48570ff20e57da96e2fe5efc38d0dba7b856a0eec94f
ripemd-160
6fe0b6ca9c747b543cfecfd1f0ac570e36171df0
Diameter
259295962
Circumference
814602289.3247
Area
5.2805771064462E+16
Volume
9.128215471541E+24
Surface area
2.1122308425785E+17
Circumference
814602289.3247
Perimeter
518591924
Area
16808598977376361
Diagonal
183349933.06449
Surface area
100851593864258166
Volume
2.1792009208555E+24
Space diagonal
224556890.19072
Perimeter
388943943
Area
7.2783368582165E+15
Altitude
112278445.09536
Surface area
7.2783368582165E+15
Volume
2.5682129145082E+23
Height
61116644.35483