15691989 is an odd 8-digits composite number following 15691988
and preceding 15691990 . In scientific notation, it is written as 1.5691989 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 10461324 positive integers (up to 15691989) that are relatively prime to 15691989.
15691989 has 4 divisors, whose sum is 20922656
The reverse of 15691989 is 98919651
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
fifteen million six hundred ninety-one thousand nine hundred eighty-nine
Scientific notation
1.5691989 × 10^7
Engineering notation
1.5691989 × 10^6
Prime Factorization
3 × 5230663
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15691989
Product of the distinct prime numbers
The prime factorization of 15691989 is 3 × 5230663.
Since it has a total of 2 prime factors.
8 , 3 , 87 , 32 , 948 , 324 , 4662 , 7532 , 18706 , 47628 , 259780 , 185730 , 8695309 , 114125 , 24679779 , 46300092 , 506933477 , 947383708 , 6293295004 , 5536252205
n×2
31383978
n×3
47075967
n×4
62767956
n×5
78459945
n÷2
7845994.5
n÷3
5230663
n÷3
3922997.25
n÷5
3138397.8
n2
246238518776121
n3
3.8639721280112E+21
n4
6.0633408129058E+28
n5
9.5145877339369E+35
2 √n
3961.3115252401
3 √n
250.35676529857
4 √n
62.938950779625
5 √n
27.487522572265
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
-15691988
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 15691989 can be divided by 4 positive divisors.
The sum of these divisors (counting 15691989) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011110111000011010101
3
Ternary
1002112020100210
4
Quaternary
323313003111
5
Quinary
13004120424
6
Senary
1320200033
8
Octal
73670325
10
Decimal
15691989
12
Duodecimal
5309019
16
Hexadecimal
ef70d5
20
Vigesimal
4i19j9
36
Base36
9cc0l
md5
d318013e43c23df66f7db838ec395b7d
sha1
b6249432fa071baafaee423391ec283af7607047
sha256
3ac1c9d4f5afe3f01e29c8f619db39307035637234deb5cbf6e35faa21e7162d
sha512
7dc124210c7d8968112f9621a6fdc9779a9419df666274ba338cd49ba54931df2d53ed96e82bc0978505d738650915cfbd931378d315f24a28b4183c98550b6d
ripemd-160
28fb25894659b5b611ae307a5da0a4ba5b37f599
Diameter
31383978
Circumference
98595674.725224
Area
7.7358112161789E+14
Volume
1.6185368601381E+22
Surface area
3.0943244864716E+15
Circumference
98595674.725224
Perimeter
62767956
Area
246238518776121
Diagonal
22191823.664409
Surface area
1477431112656726
Volume
3.8639721280112E+21
Space diagonal
27179322.219812
Perimeter
47075967
Area
1.0662440632519E+14
Altitude
13589661.109906
Surface area
1.0662440632519E+14
Volume
4.5537348233875E+20
Height
7397274.5548031