812978021 is an odd 9-digits prime number following 812978020
and preceding 812978022 . In scientific notation, it is written as 8.12978021 × 10^8.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 812978020 positive integers (up to 812978021) that are relatively prime to 812978021.
812978021 has 2 divisors, whose sum is 812978022
The reverse of 812978021 is 120879218
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
eight hundred twelve million nine hundred seventy-eight thousand twenty-one
Scientific notation
8.12978021 × 10^8
Engineering notation
8.12978021 × 10^6
Prime Factorization
812978021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
812978021
Product of the distinct prime numbers
The prime factorization of 812978021 is 812978021.
Since it has a total of 1 prime factors.
9 , 4 , 17 , 31 , 791 , 564 , 2259 , 4705 , 63162 , 56896 , 65284 , 249772 , 3574841 , 2353768 , 48175307 , 44080026 , 465646533 , 178513849 , 7297719525 , 2171743906
n×2
1625956042
n×3
2438934063
n×4
3251912084
n×5
4064890105
n÷2
406489010.5
n÷3
270992673.66667
n÷3
203244505.25
n÷5
162595604.2
n2
660933262629076441
n3
5.3732421586526E+26
n4
4.3683277764952E+35
n5
3.5513544708144E+44
2 √n
28512.76943757
3 √n
933.31075011967
4 √n
168.85724573606
5 √n
60.536284347282
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
812978022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
406489011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
28512.769455106
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999975399
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 812978021 can be divided by 2 positive divisors.
The sum of these divisors (counting 812978021) is 812978022, the average is 406489011.
Base
System
Value
2
Binary
110000011101010000111101100101
3
Ternary
2002122202120012002
4
Quaternary
300131100331211
5
Quinary
3131110244041
6
Senary
212400535045
8
Octal
6035207545
10
Decimal
812978021
12
Duodecimal
1a8321485
16
Hexadecimal
30750f65
20
Vigesimal
ce12511
36
Base36
dg0xut
md5
216a5a0f34c3c0f792854a5f5c1276fc
sha1
e691580a8647c8b1e733639362e83e6a4a2b1a67
sha256
7a173d32c3467a4b36cca330b8009fff35c2af757b5cb3ba7ff8954f73525e3b
sha512
6e1489b78a4fd47e37817dc474f609a4eec63c9549ba7463a42614429ecb4a396a74d7fb06bc9e933764ebd5eb52905308f9f3665ba906d34ea1edeb5021f40c
ripemd-160
e024b15eb78add7bdd908db80af17177481088a4
Diameter
1625956042
Circumference
5108091556.6071
Area
2.0763830823886E+18
Volume
2.2507384122109E+27
Surface area
8.3055323295546E+18
Circumference
5108091556.6071
Perimeter
3251912084
Area
660933262629076441
Diagonal
1149724543.2094
Surface area
3965599575774458646
Volume
5.3732421586526E+26
Space diagonal
1408119237.8088
Perimeter
2438934063
Area
2.8619249782146E+17
Altitude
704059618.9044
Surface area
2.8619249782146E+17
Volume
6.3324266122345E+25
Height
383241514.40315