31396987 is an odd 8-digits composite number following 31396986
and preceding 31396988 . In scientific notation, it is written as 3.1396987 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 29110824 positive integers (up to 31396987) that are relatively prime to 31396987.
31396987 has 8 divisors, whose sum is 33753600
The reverse of 31396987 is 78969313
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
thirty-one million three hundred ninety-six thousand nine hundred eighty-seven
Scientific notation
3.1396987 × 10^7
Engineering notation
3.1396987 × 10^6
Prime Factorization
19 × 47 × 35159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31396987
Product of the distinct prime numbers
The prime factorization of 31396987 is 19 × 47 × 35159.
Since it has a total of 3 prime factors.
5 , 2 , 81 , 94 , 972 , 662 , 8929 , 5726 , 60792 , 93620 , 284649 , 896377 , 3346005 , 6387190 , 87131827 , 18401506 , 102198290 , 185345389 , 7625238581 , 1203823510
n×2
62793974
n×3
94190961
n×4
125587948
n×5
156984935
n÷2
15698493.5
n÷3
10465662.333333
n÷3
7849246.75
n÷5
6279397.4
n2
985770792678169
n3
3.0950232762696E+22
n4
9.7174405569735E+29
n5
3.0509835484057E+37
2 √n
5603.3014375455
3 √n
315.4733355839
4 √n
74.855203142771
5 √n
31.577489153323
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
-31396986
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 31396987 can be divided by 8 positive divisors.
The sum of these divisors (counting 31396987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110111110001010001111011
3
Ternary
2012002010120101
4
Quaternary
1313301101323
5
Quinary
31014200422
6
Senary
3040540231
8
Octal
167612173
10
Decimal
31396987
12
Duodecimal
a621677
16
Hexadecimal
1df147b
20
Vigesimal
9g4c97
36
Base36
ioy2j
md5
f4d0a8cfda3045af7c93622e7cff02f1
sha1
e17ad05fdedada72c02088b4443d3f67c149bf55
sha256
e28ebe525b559c7da64d58dd52a1cd183cabf8785e155b5c81c12887c9a8f93a
sha512
8252906fdf6a22b868d62c6ca1d718ce2aa886b5ee36397175349df317ab0265c8224eb077af6c195826e20b5eee747269311e29b48a90633fc94ec9d57931be
ripemd-160
e550cc8afb6aa83cf7316c5f216bc7e043ea315b
Diameter
62793974
Circumference
197273087.40811
Area
3.0968902804011E+15
Volume
1.2964403183224E+23
Surface area
1.2387561121604E+16
Circumference
197273087.40811
Perimeter
125587948
Area
985770792678169
Diagonal
44402044.833052
Surface area
5914624756069014
Volume
3.0950232762696E+22
Space diagonal
54381176.68858
Perimeter
94190961
Area
4.2685127438401E+14
Altitude
27190588.34429
Surface area
4.2685127438401E+14
Volume
3.6475199109674E+21
Height
14800681.611017