12831985 is an odd 8-digits composite number following 12831984
and preceding 12831986 . In scientific notation, it is written as 1.2831985 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 9934320 positive integers (up to 12831985) that are relatively prime to 12831985.
12831985 has 8 divisors, whose sum is 15895296
The reverse of 12831985 is 58913821
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million eight hundred thirty-one thousand nine hundred eighty-five
Scientific notation
1.2831985 × 10^7
Engineering notation
1.2831985 × 10^6
Prime Factorization
5 × 31 × 82787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12831985
Product of the distinct prime numbers
The prime factorization of 12831985 is 5 × 31 × 82787.
Since it has a total of 3 prime factors.
6 , 2 , 88 , 78 , 759 , 602 , 8747 , 8327 , 57364 , 22069 , 871848 , 364002 , 3322039 , 4315473 , 6054489 , 23761023 , 391873393 , 158254609 , 4219917811 , 2540725602
n×2
25663970
n×3
38495955
n×4
51327940
n×5
64159925
n÷2
6415992.5
n÷3
4277328.3333333
n÷3
3207996.25
n÷5
2566397
n2
164659839040225
n3
2.1129125846666E+21
n4
2.7112862592753E+28
n5
3.4791184609727E+35
2 √n
3582.1760146592
3 √n
234.11610012911
4 √n
59.851282481324
5 √n
26.403333946391
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-12831984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12831985 can be divided by 8 positive divisors.
The sum of these divisors (counting 12831985) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111100110011110001
3
Ternary
220010221011201
4
Quaternary
300330303301
5
Quinary
11241110420
6
Senary
1135011201
8
Octal
60746361
10
Decimal
12831985
12
Duodecimal
4369b01
16
Hexadecimal
c3ccf1
20
Vigesimal
403jj5
36
Base36
7n181
md5
33e7114f8beb33cd29aae84a1709473a
sha1
524324f51ab208f69c58bda774a33ae959e3506d
sha256
5b01273ac7d789165d878b069fb1131726c45ec67233249145ce5ceb96721652
sha512
8b793bfa13c3489acad9627b0f538924c3b35fc85aefeb19062418ad92d273be49b31796fab5bec9313c95a7748f3a49add4d0c5d6c3fa1308bd1fc77d6ea443
ripemd-160
c6ef1083e6734da232d5dbf30fd01ee0f9c20659
Diameter
25663970
Circumference
80625739.613949
Area
5.1729414067005E+14
Volume
8.8505475382213E+21
Surface area
2.0691765626802E+15
Circumference
80625739.613949
Perimeter
51327940
Area
164659839040225
Diagonal
18147167.219168
Surface area
987959034241350
Volume
2.1129125846666E+21
Space diagonal
22225649.981962
Perimeter
38495955
Area
71299801795946
Altitude
11112824.990981
Surface area
71299801795946
Volume
2.4900913611202E+20
Height
6049055.7397227