15981331 is an odd 8-digits composite number following 15981330
and preceding 15981332 . In scientific notation, it is written as 1.5981331 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 15823000 positive integers (up to 15981331) that are relatively prime to 15981331.
15981331 has 4 divisors, whose sum is 16139664
The reverse of 15981331 is 13318951
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million nine hundred eighty-one thousand three hundred thirty-one
Scientific notation
1.5981331 × 10^7
Engineering notation
1.5981331 × 10^6
Prime Factorization
101 × 158231
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15981331
Product of the distinct prime numbers
The prime factorization of 15981331 is 101 × 158231.
Since it has a total of 2 prime factors.
10 , 7 , 4 , 71 , 524 , 243 , 4708 , 3845 , 33087 , 65577 , 638427 , 576885 , 9440128 , 2487361 , 82493618 , 26464498 , 470554469 , 865063221 , 4315661281 , 9448456276
n×2
31962662
n×3
47943993
n×4
63925324
n×5
79906655
n÷2
7990665.5
n÷3
5327110.3333333
n÷3
3995332.75
n÷5
3196266.2
n2
255402940531561
n3
4.0816789310082E+21
n4
6.5230662032168E+28
n5
1.0424728012852E+36
2 √n
3997.6656938769
3 √n
251.88616572733
4 √n
63.227096199943
5 √n
27.58815067836
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
-15981330
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 15981331 can be divided by 4 positive divisors.
The sum of these divisors (counting 15981331) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100111101101100010011
3
Ternary
1010001221021011
4
Quaternary
330331230103
5
Quinary
13042400311
6
Senary
1330311351
8
Octal
74755423
10
Decimal
15981331
12
Duodecimal
5428557
16
Hexadecimal
f3db13
20
Vigesimal
4jhd6b
36
Base36
9ij9v
md5
51e3bbce501bf609383c29fe3f2d3b97
sha1
5098d2c654e3dfbe5fc607f0401f59980e6ee5d2
sha256
88ce5eaac84cd730c0f28adc8187c19e8f8f37181a7c81a9ac316e38f821aeb1
sha512
011ddfa7c8ca8c8d53670de845028e547040811ee04bd04978b0d3234bdabaaa70468800843d1394af9a21b9e4ac4ace75063f1e1b1d690fd700a417d735c15e
ripemd-160
d0148e2118d7bab070367a7c70959892b7a21787
Diameter
31962662
Circumference
100413664.12837
Area
8.0237200167918E+14
Volume
1.709729672529E+22
Surface area
3.2094880067167E+15
Circumference
100413664.12837
Perimeter
63925324
Area
255402940531561
Diagonal
22601015.044974
Surface area
1532417643189366
Volume
4.0816789310082E+21
Space diagonal
27680477.264576
Perimeter
47943993
Area
1.1059271735079E+14
Altitude
13840238.632288
Surface area
1.1059271735079E+14
Volume
4.8103047512369E+20
Height
7533671.6816579