129021898 is an even 9-digits composite number following 129021897
and preceding 129021899 . In scientific notation, it is written as 1.29021898 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 64510948 positive integers (up to 129021898) that are relatively prime to 129021898.
129021898 has 4 divisors, whose sum is 193532850
The reverse of 129021898 is 898120921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 40
Digital Root 4
Name
one hundred twenty-nine million twenty-one thousand eight hundred ninety-eight
Scientific notation
1.29021898 × 10^8
Engineering notation
1.29021898 × 10^6
Prime Factorization
2 × 64510949
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
129021898
Product of the distinct prime numbers
The prime factorization of 129021898 is 2 × 64510949.
Since it has a total of 2 prime factors.
1 , 10 , 78 , 89 , 973 , 641 , 6194 , 679 , 2279 , 75919 , 367910 , 103996 , 2414885 , 1709154 , 14726859 , 80616619 , 697136454 , 900269974 , 576742202 , 3576582091
n×2
258043796
n×3
387065694
n×4
516087592
n×5
645109490
n÷2
64510949
n÷3
43007299.333333
n÷3
32255474.5
n÷5
25804379.6
n2
16646650163522404
n3
2.1477823994397E+24
n4
2.771109616667E+32
n5
3.5753382230843E+40
2 √n
11358.780656391
3 √n
505.30602371116
4 √n
106.57758045851
5 √n
41.892153411325
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
-129021897
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 129021898 can be divided by 4 positive divisors.
The sum of these divisors (counting 129021898) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101100001011011111001010
3
Ternary
22222202222202211
4
Quaternary
13230023133022
5
Quinary
231012200043
6
Senary
20445215334
8
Octal
754133712
10
Decimal
129021898
12
Duodecimal
3726154a
16
Hexadecimal
7b0b7ca
20
Vigesimal
2067eei
36
Base36
24tdxm
md5
caebc003a1ec18701f4cc7a3b9dfaa7a
sha1
89a4e0f4348658e109aa94efe80dd22225f7f321
sha256
c4bdfe67abeda510f87515d76594762a8704fb7a395aeaa9366443fc2dbaa66d
sha512
fe4e3acc597adab933b86597669c0305bbe4c37f986e6000e28ac4909b15f054d6e70dcacb47c6a9849759509670e402dc50cd688f9714c6aa8881334c3c6b8a
ripemd-160
99fd4c10e193963bb5445e37c13d43b951e38957
Diameter
258043796
Circumference
810668493.81802
Area
5.2296993860601E+16
Volume
8.9966098767855E+24
Surface area
2.0918797544241E+17
Circumference
810668493.81802
Perimeter
516087592
Area
16646650163522404
Diagonal
182464517.99472
Surface area
99879900981134424
Volume
2.1477823994397E+24
Space diagonal
223472482.62497
Perimeter
387065694
Area
7.2082109647614E+15
Altitude
111736241.31248
Surface area
7.2082109647614E+15
Volume
2.5311858319282E+23
Height
60821505.998239