68628991 is an odd 8-digits prime number following 68628990
and preceding 68628992 . In scientific notation, it is written as 6.8628991 × 10^7.
The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors.
There are 68628990 positive integers (up to 68628991) that are relatively prime to 68628991.
68628991 has 2 divisors, whose sum is 68628992
The reverse of 68628991 is 19982686
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 49 Digital Root 4
Name
sixty-eight million six hundred twenty-eight thousand nine hundred ninety-one
Scientific notation
6.8628991 × 10^7
Engineering notation
6.8628991 × 10^6
Prime Factorization
68628991
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
68628991 Product of the distinct prime numbers
The prime factorization of 68628991 is 68628991.
Since it has a total of 1 prime factors.
7 , 10 , 12 , 72 , 407 , 914 , 5008 , 6818 , 65003 , 85454 , 697019 , 872793 , 2561707 , 9379803 , 82733955 , 49325341 , 152382770 , 682667407 , 8139538028 , 1668688404
n×2
137257982
n×3
205886973
n×4
274515964
n×5
343144955
n÷2
34314495.5
n÷3
22876330.333333
n÷3
17157247.75
n÷5
13725798.2
n2
4709938405678081
n3
3.2323832045384E+23
n4
2.2183519785281E+31
n5
1.5224325796924E+39
2 √n8284.2616448299
3 √n409.42014202973
4 √n91.017919361134
5 √n36.923386196122
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
68628992 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
34314496 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
8284.2617051853 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999708578 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68628991 can be divided by 2 positive divisors.
The sum of these divisors (counting 68628991) is 68628992, the average is 34314496.
Base
System
Value
2
Binary
100000101110011000111111111
3
Ternary
11210010201021111
4
Quaternary
10011303013333
5
Quinary
120032111431
6
Senary
10450542451
8
Octal
405630777
10
Decimal
68628991
12
Duodecimal
1ab97a27
16
Hexadecimal
41731ff
20
Vigesimal
118ic9b
36
Base36
14uygv
md5
08526540aa09651adf244b7855690004
sha1
84712498b7de7a898f3a9e30c236df2ccca9eeb0
sha256
dae097f88f37099c4cffe6930c70c45100438aa7ea4405285c1c1f69ea13d81f
sha512
aacf46ecd7bd65eb742918df2d34697b3af84f9e3912118a24db6dc1180bf1da8a127344cf4e765669571c0b8d2ce5f63231536fe3ef56232cd6a50a973363b8
ripemd-160
166a85d391d7eb240d63d03a70603ec3a9987324
Diameter
137257982
Circumference
431208667.89776
Area
1.4796707894139E+16
Volume
1.3539775105286E+24
Surface area
5.9186831576555E+16
Circumference
431208667.89776
Perimeter
274515964
Area
4709938405678081
Diagonal
97056049.844181
Surface area
28259630434068486
Volume
3.2323832045384E+23
Space diagonal
118868899.28419
Perimeter
205886973
Area
2.0394631547886E+15
Altitude
59434449.642094
Surface area
2.0394631547886E+15
Volume
3.809400138871E+22
Height
32352016.614727