831396985 is an odd 9-digits composite number following 831396984
and preceding 831396986 . In scientific notation, it is written as 8.31396985 × 10^8.
The sum of its digits is 52. It has a total of 4 prime factors and 16 positive divisors.
There are 594874368 positive integers (up to 831396985) that are relatively prime to 831396985.
831396985 has 16 divisors, whose sum is 883474560
The reverse of 831396985 is 589693138
Previous prime number is 163
Is Prime? no Number parity odd Number length 9 Sum of Digits 52 Digital Root 7
Name
eight hundred thirty-one million three hundred ninety-six thousand nine hundred eighty-five
Scientific notation
8.31396985 × 10^8
Engineering notation
8.31396985 × 10^6
Prime Factorization
85 × 23 × 163 × 2609
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
831396985 Product of the distinct prime numbers
The prime factorization of 831396985 is 85 × 23 × 163 × 2609.
Since it has a total of 4 prime factors.
7 , 6 , 100 , 86 , 29 , 556 , 4474 , 2577 , 1256 , 67124 , 338880 , 761418 , 4112427 , 8629215 , 79886289 , 74160635 , 971972628 , 695576058 , 7814823374 , 4168717501
n×2
1662793970
n×3
2494190955
n×4
3325587940
n×5
4156984925
n÷2
415698492.5
n÷3
277132328.33333
n÷3
207849246.25
n÷5
166279397
n2
691220946667090225
n3
5.7467901102786E+26
n4
4.7778639711135E+35
n5
3.9723017003239E+44
2 √n28833.955417181
3 √n940.30659419465
4 √n169.80564012182
5 √n60.808135748469
1 , 23 , 85 , 163 , 1955 , 2609 , 3749 , 13855 , 60007 , 221765 , 318665 , 425267 , 5100595 , 9781141 , 36147695 , 831396985
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-831396984 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 831396985 can be divided by 16 positive divisors.
The sum of these divisors (counting 831396985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110001100011100001110001111001
3
Ternary
2010221102100020221
4
Quaternary
301203201301321
5
Quinary
3200314200420
6
Senary
214255420041
8
Octal
6143416171
10
Decimal
831396985
12
Duodecimal
1b2524621
16
Hexadecimal
318e1c79
20
Vigesimal
cjg4c95
36
Base36
dqzq0p
md5
60e85827500393f6a168820370b5737b
sha1
1aff97dd7ebcf05b13191176a8480465dc0916f4
sha256
73fb46854b1a3c7c55c198f8360eaad08a4fe701985382435f9ae1d4aee1a672
sha512
74a5454aa460dbae5e10f1002fd02c74edd04b438cef3373f2205ba21f25e029b47bb64c1dfe77c89e2e9a7bd9dddae38518e6a2d2da17ffe00c0ccb7fe49bce
ripemd-160
c812c85e3e9c49289e9bd5817bf232488eae74ff
Diameter
1662793970
Circumference
5223821320.5854
Area
2.1715346480567E+18
Volume
2.4072098122898E+27
Surface area
8.6861385922269E+18
Circumference
5223821320.5854
Perimeter
3325587940
Area
691220946667090225
Diagonal
1175772891.9031
Surface area
4147325680002541350
Volume
5.7467901102786E+26
Space diagonal
1440021819.2796
Perimeter
2494190955
Area
2.9930744972081E+17
Altitude
720010909.63979
Surface area
2.9930744972081E+17
Volume
6.7726570950564E+25
Height
391924297.30103