985387991 is an odd 9-digits composite number following 985387990
and preceding 985387992 . In scientific notation, it is written as 9.85387991 × 10^8.
The sum of its digits is 59. It has a total of 4 prime factors and 12 positive divisors.
There are 844189920 positive integers (up to 985387991) that are relatively prime to 985387991.
985387991 has 12 divisors, whose sum is 1146849120
The reverse of 985387991 is 199783589
Previous prime number is 2671
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 59
Digital Root 5
Name
nine hundred eighty-five million three hundred eighty-seven thousand nine hundred ninety-one
Scientific notation
9.85387991 × 10^8
Engineering notation
9.85387991 × 10^6
Prime Factorization
7 × 7 × 2671 × 7529
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
140769713
Product of the distinct prime numbers
The prime factorization of 985387991 is 7 × 7 × 2671 × 7529.
Since it has a total of 4 prime factors.
3 , 4 , 68 , 74 , 930 , 641 , 5886 , 5960 , 30281 , 98285 , 468633 , 83338 , 8578239 , 4836516 , 96230723 , 67146262 , 936926085 , 790721817 , 2738944020 , 7412416017
n×2
1970775982
n×3
2956163973
n×4
3941551964
n×5
4926939955
n÷2
492693995.5
n÷3
328462663.66667
n÷3
246346997.75
n÷5
197077598.2
n2
970989492807016081
n3
9.5680138559921E+26
n4
9.4282059514163E+35
n5
9.2904409212003E+44
2 √n
31390.890254977
3 √n
995.1054124324
4 √n
177.17474496941
5 √n
62.910256083993
1 , 7 , 49 , 2671 , 7529 , 18697 , 52703 , 130879 , 368921 , 20109959 , 140769713 , 985387991
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
-985387990
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 985387991 can be divided by 12 positive divisors.
The sum of these divisors (counting 985387991) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111010101110111101001111010111
3
Ternary
2112200011220012112
4
Quaternary
322232331033113
5
Quinary
4004224403431
6
Senary
241440141235
8
Octal
7256751727
10
Decimal
985387991
12
Duodecimal
23600781b
16
Hexadecimal
3abbd3d7
20
Vigesimal
f7id9jb
36
Base36
gaoa8n
md5
2ada8e31114a5ce2ad22f977c12ff465
sha1
18373d28679e636d58b5cf7a778656abfbe692f9
sha256
b160f2e6ac6844dfce87cada21b5afea88f5d3be5cdfc9152c1ff42781f849ea
sha512
4bc8821508ef0af812dfc023b1531710c105106453527bc55386f5db3e0680f7f27d530f80bc07cc996adfd347a3bd36995b76f4e13d38ecb75e4f97077db56b
ripemd-160
2c04fc95b323e9e54c085fa2843b4267c1473ab1
Diameter
1970775982
Circumference
6191375346.9224
Area
3.0504534573154E+18
Volume
4.007840271924E+27
Surface area
1.2201813829262E+19
Circumference
6191375346.9224
Perimeter
3941551964
Area
970989492807016081
Diagonal
1393549061.0718
Surface area
5825936956842096486
Volume
9.5680138559921E+26
Space diagonal
1706742065.5802
Perimeter
2956163973
Area
4.2045078378932E+17
Altitude
853371032.79011
Surface area
4.2045078378932E+17
Volume
1.1276012466765E+26
Height
464516353.69059