15661889 is an odd 8-digits prime number following 15661888
and preceding 15661890 . In scientific notation, it is written as 1.5661889 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 15661888 positive integers (up to 15661889) that are relatively prime to 15661889.
15661889 has 2 divisors, whose sum is 15661890
The reverse of 15661889 is 98816651
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
fifteen million six hundred sixty-one thousand eight hundred eighty-nine
Scientific notation
1.5661889 × 10^7
Engineering notation
1.5661889 × 10^6
Prime Factorization
15661889
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
15661889
Product of the distinct prime numbers
The prime factorization of 15661889 is 15661889.
Since it has a total of 1 prime factors.
10 , 5 , 44 , 28 , 987 , 497 , 7008 , 2117 , 7001 , 6784 , 391906 , 834188 , 9117113 , 9780263 , 35361989 , 82823542 , 964481816 , 788351748 , 8966115281 , 2642801686
n×2
31323778
n×3
46985667
n×4
62647556
n×5
78309445
n÷2
7830944.5
n÷3
5220629.6666667
n÷3
3915472.25
n÷5
3132377.8
n2
245294767048321
n3
3.8417794137917E+21
n4
6.016952274129E+28
n5
9.4236838635706E+35
2 √n
3957.5104548188
3 √n
250.19658670748
4 √n
62.908747045373
5 √n
27.476969289555
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
15661890
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
7830945
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3957.5105811608
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998723015
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15661889 can be divided by 2 positive divisors.
The sum of these divisors (counting 15661889) is 15661890, the average is 7830945.
Base
System
Value
2
Binary
111011101111101101000001
3
Ternary
1002110201001222
4
Quaternary
323233231001
5
Quinary
13002140024
6
Senary
1315404425
8
Octal
73575501
10
Decimal
15661889
12
Duodecimal
52b3715
16
Hexadecimal
eefb41
20
Vigesimal
4hhee9
36
Base36
9bosh
md5
e5ffca67ea94195f9f455b42bae9b5bd
sha1
fafadedfb2b158171a88775c128f67d52cab998d
sha256
30ddb94801abbbd04626e7423f09ed559fd9fe46c87cb6c10cc861c49c1f404d
sha512
0cf673abc6833c155f9891da633b80cca7a86682584b89b93cac36e86a96eab36df0044ca6c9be75010f601945e68b77c8d2415b05828c67d640bb4c52473af8
ripemd-160
c3f0cecd0d236a07a5e894e160750a48249e40d9
Diameter
31323778
Circumference
98406550.847478
Area
7.7061623812302E+14
Volume
1.6092407977441E+22
Surface area
3.0824649524921E+15
Circumference
98406550.847478
Perimeter
62647556
Area
245294767048321
Diagonal
22149255.836182
Surface area
1471768602289926
Volume
3.8417794137917E+21
Space diagonal
27127187.490504
Perimeter
46985667
Area
1.0621574983962E+14
Altitude
13563593.745252
Surface area
1.0621574983962E+14
Volume
4.5275804588583E+20
Height
7383085.2787273