816996987 is an odd 9-digits composite number following 816996986
and preceding 816996988 . In scientific notation, it is written as 8.16996987 × 10^8.
The sum of its digits is 63. It has a total of 4 prime factors and 12 positive divisors.
There are 544476240 positive integers (up to 816996987) that are relatively prime to 816996987.
816996987 has 12 divisors, whose sum is 1180515024
The reverse of 816996987 is 789699618
Previous prime number is 3221
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 63
Digital Root 9
Name
eight hundred sixteen million nine hundred ninety-six thousand nine hundred eighty-seven
Scientific notation
8.16996987 × 10^8
Engineering notation
8.16996987 × 10^6
Prime Factorization
3 × 3 × 3221 × 28183
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
272332329
Product of the distinct prime numbers
The prime factorization of 816996987 is 3 × 3 × 3221 × 28183.
Since it has a total of 4 prime factors.
1 , 7 , 10 , 61 , 500 , 940 , 7822 , 92 , 70179 , 92392 , 49984 , 856712 , 7285264 , 2562239 , 11228223 , 57275360 , 481853769 , 516676179 , 9662747954 , 6199444181
n×2
1633993974
n×3
2450990961
n×4
3267987948
n×5
4084984935
n÷2
408498493.5
n÷3
272332329
n÷3
204249246.75
n÷5
163399397.4
n2
667484076767078169
n3
5.4533247958918E+26
n4
4.455349927376E+35
n5
3.6400074666968E+44
2 √n
28583.159150101
3 √n
934.84616684276
4 √n
169.06554690445
5 √n
60.596018705438
1 , 3 , 9 , 3221 , 9663 , 28183 , 28989 , 84549 , 253647 , 90777443 , 272332329 , 816996987
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
-816996986
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 816996987 can be divided by 12 positive divisors.
The sum of these divisors (counting 816996987) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
110000101100100110001001111011
3
Ternary
2002221022202011200
4
Quaternary
300230212021323
5
Quinary
3133122400422
6
Senary
213023025243
8
Octal
6054461173
10
Decimal
816996987
12
Duodecimal
1a973b223
16
Hexadecimal
30b2627b
20
Vigesimal
cf64c97
36
Base36
dif2wr
md5
6b1b1cb5bb447c2eed6af8a8e9b9029d
sha1
944266cddb6c4126990893da1e6d741faa21c34d
sha256
557c0f3b945a30825f1ac6f24e3cf47c4780bc9ebb2ac74d7f4d24adb952dfb3
sha512
e3f1310077b00bcd618604498d16488ad9263d14c0457872022ecb257e34fd5a387fa01b4ad49ae40557ce2e411fe63b41a121a26366a53b6b20615d088a45b6
ripemd-160
ac0d6c1fdceaeb7b4993d51e8536bb923da67cc7
Diameter
1633993974
Circumference
5133343464.7284
Area
2.0969630719596E+18
Volume
2.284283348855E+27
Surface area
8.3878522878385E+18
Circumference
5133343464.7284
Perimeter
3267987948
Area
667484076767078169
Diagonal
1155408219.4334
Surface area
4004904460602469014
Volume
5.4533247958918E+26
Space diagonal
1415080291.1147
Perimeter
2450990961
Area
2.8902908355095E+17
Altitude
707540145.55734
Surface area
2.8902908355095E+17
Volume
6.4268049053131E+25
Height
385136073.14445