130721812 is an even 9-digits composite number following 130721811
and preceding 130721813 . In scientific notation, it is written as 1.30721812 × 10^8.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 60333120 positive integers (up to 130721812) that are relatively prime to 130721812.
130721812 has 12 divisors, whose sum is 246360436
The reverse of 130721812 is 218127031
Previous prime number is 13
Is Prime? no Number parity even Number length 9 Sum of Digits 25 Digital Root 7
Name
one hundred thirty million seven hundred twenty-one thousand eight hundred twelve
Scientific notation
1.30721812 × 10^8
Engineering notation
1.30721812 × 10^6
Prime Factorization
2 × 2 × 13 × 2513881
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
65360906 Product of the distinct prime numbers
The prime factorization of 130721812 is 2 × 2 × 13 × 2513881.
Since it has a total of 4 prime factors.
1 , 5 , 51 , 28 , 766 , 915 , 5712 , 2032 , 11406 , 92470 , 440094 , 153211 , 3283739 , 9513666 , 61778758 , 19036871 , 257106620 , 875827154 , 8557212430 , 9797080046
n×2
261443624
n×3
392165436
n×4
522887248
n×5
653609060
n÷2
65360906
n÷3
43573937.333333
n÷3
32680453
n÷5
26144362.4
n2
17088192132563344
n3
2.2337994393728E+24
n4
2.920063103594E+32
n5
3.8171594005615E+40
2 √n11433.36398441
3 √n507.51554968655
4 √n106.92690954297
5 √n42.001965303698
1 , 2 , 4 , 13 , 26 , 52 , 2513881 , 5027762 , 10055524 , 32680453 , 65360906 , 130721812
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-130721811 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 130721812 can be divided by 12 positive divisors.
The sum of these divisors (counting 130721812) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111110010101010100000010100
3
Ternary
100002222100121121
4
Quaternary
13302222200110
5
Quinary
231431044222
6
Senary
20545453324
8
Octal
762524024
10
Decimal
130721812
12
Duodecimal
37941244
16
Hexadecimal
7caa814
20
Vigesimal
20h04ac
36
Base36
25ttlg
md5
a35086e1a7ce0d93a0a20bfc3a815397
sha1
6f259e82f98597936e17d1d18801e70d9d868e9a
sha256
fe78edf3caae2eedf7f6fb27f8eda17917e2c52a9cdd0bf5a4fed947f1b03463
sha512
14506f5cf1d7e7193fa0f8afbc233d09a15b6248b4d9649566663b889c2cbdb14bd9b66d9206c06cae512437e79e5f5b82121bf0d90eb708d879a9a70350f740
ripemd-160
b663cb4a9e908eb25382d70f0dede86093e04538
Diameter
261443624
Circumference
821349368.48629
Area
5.3684138866792E+16
Volume
9.3569172111022E+24
Surface area
2.1473655546717E+17
Circumference
821349368.48629
Perimeter
522887248
Area
17088192132563344
Diagonal
184868559.42839
Surface area
102529152795380064
Volume
2.2337994393728E+24
Space diagonal
226416820.04147
Perimeter
392165436
Area
7.3994042457746E+15
Altitude
113208410.02073
Surface area
7.3994042457746E+15
Volume
2.6325578856521E+23
Height
61622853.142795