31369981 is an odd 8-digits composite number following 31369980
and preceding 31369982 . In scientific notation, it is written as 3.1369981 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 29524672 positive integers (up to 31369981) that are relatively prime to 31369981.
31369981 has 4 divisors, whose sum is 33215292
The reverse of 31369981 is 18996313
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
thirty-one million three hundred sixty-nine thousand nine hundred eighty-one
Scientific notation
3.1369981 × 10^7
Engineering notation
3.1369981 × 10^6
Prime Factorization
17 × 1845293
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31369981
Product of the distinct prime numbers
The prime factorization of 31369981 is 17 × 1845293.
Since it has a total of 2 prime factors.
1 , 2 , 83 , 90 , 230 , 609 , 2743 , 8907 , 95852 , 1528 , 918720 , 266218 , 3305204 , 5785273 , 12348230 , 52741000 , 792306083 , 285024110 , 1055784238 , 6984131106
n×2
62739962
n×3
94109943
n×4
125479924
n×5
156849905
n÷2
15684990.5
n÷3
10456660.333333
n÷3
7842495.25
n÷5
6273996.2
n2
984075707940361
n3
3.0870436260651E+22
n4
9.6840499895832E+29
n5
3.0378846417628E+37
2 √n
5600.8910898178
3 √n
315.38285857103
4 √n
74.839101342933
5 √n
31.572055031696
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
-31369980
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 31369981 can be divided by 4 positive divisors.
The sum of these divisors (counting 31369981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101010101011111101
3
Ternary
2012000202112011
4
Quaternary
1313222223331
5
Quinary
31012314411
6
Senary
3040211221
8
Octal
167525375
10
Decimal
31369981
12
Duodecimal
a609b11
16
Hexadecimal
1deaafd
20
Vigesimal
9g14j1
36
Base36
iod8d
md5
b03530a244021e3087e25396952df4e1
sha1
d2a0ce4ab84a38280c0678e48f624b51cfc8dcfe
sha256
a82f27e261ca60b59b01a9194731db9cd1e4e10dcaa67451483e5cae991983f0
sha512
efa225d069047a96d49e3d7d84a2c09295e0b638303a835a6ac282b87e3d4bb3f7877af3608208a2be3a751241b948ca6972e251b7423d48fd16af4e7da8cf03
ripemd-160
a8eb2e48fa22578be470fb3b6f4d91ea617b82ff
Diameter
62739962
Circumference
197103403.7057
Area
3.0915650146416E+15
Volume
1.293097810261E+23
Surface area
1.2366260058566E+16
Circumference
197103403.7057
Perimeter
125479924
Area
984075707940361
Diagonal
44363852.581586
Surface area
5904454247642166
Volume
3.0870436260651E+22
Space diagonal
54334400.92447
Perimeter
94109943
Area
4.2611728116175E+14
Altitude
27167200.462235
Surface area
4.2611728116175E+14
Volume
3.6381158030155E+21
Height
14787950.860529