31386989 is an odd 8-digits composite number following 31386988
and preceding 31386990 . In scientific notation, it is written as 3.1386989 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 30538656 positive integers (up to 31386989) that are relatively prime to 31386989.
31386989 has 4 divisors, whose sum is 32235324
The reverse of 31386989 is 98968313
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
thirty-one million three hundred eighty-six thousand nine hundred eighty-nine
Scientific notation
3.1386989 × 10^7
Engineering notation
3.1386989 × 10^6
Prime Factorization
37 × 848297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31386989
Product of the distinct prime numbers
The prime factorization of 31386989 is 37 × 848297.
Since it has a total of 2 prime factors.
7 , 5 , 46 , 97 , 65 , 151 , 6206 , 8635 , 68822 , 22728 , 205374 , 345347 , 5309042 , 8592876 , 3189050 , 14588664 , 560168549 , 150976518 , 300602785 , 6841638161
n×2
62773978
n×3
94160967
n×4
125547956
n×5
156934945
n÷2
15693494.5
n÷3
10462329.666667
n÷3
7846747.25
n÷5
6277397.8
n2
985143078486121
n3
3.092067496787E+22
n4
9.7050688508911E+29
n5
3.0461288926716E+37
2 √n
5602.4092139007
3 √n
315.43984577521
4 √n
74.849243242004
5 √n
31.575477801354
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31386988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31386989 can be divided by 4 positive divisors.
The sum of these divisors (counting 31386989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101110110101101101
3
Ternary
2012001121212002
4
Quaternary
1313232311231
5
Quinary
31013340424
6
Senary
3040422045
8
Octal
167566555
10
Decimal
31386989
12
Duodecimal
a617925
16
Hexadecimal
1deed6d
20
Vigesimal
9g3799
36
Base36
ioqct
md5
c924a31a5519687bb92823f1323e917c
sha1
947855c2b1968dfec6ff2c2cbd4a363413c938d8
sha256
b64ec926499acd2c63a36b4d6e2ab00bc8194aa92e756623f0c6f29936837a2f
sha512
fe3452b5d4621bf9e0173c343587e6556404603bf829f9603e14b1c91d3be0496e001a63a6efac9b801618a27da916311e8369f30b82ddaedeb76b549080e19e
ripemd-160
97a29b71609b906a884eabadb283206354cb25ca
Diameter
62773978
Circumference
197210268.12141
Area
3.0949182581068E+15
Volume
1.295202204308E+23
Surface area
1.2379673032427E+16
Circumference
197210268.12141
Perimeter
125547956
Area
985143078486121
Diagonal
44387905.525855
Surface area
5910858470916726
Volume
3.092067496787E+22
Space diagonal
54363859.644605
Perimeter
94160967
Area
4.2657946616569E+14
Altitude
27181929.822303
Surface area
4.2657946616569E+14
Volume
3.644036491441E+21
Height
14795968.508618