15661243 is an odd 8-digits composite number following 15661242
and preceding 15661244 . In scientific notation, it is written as 1.5661243 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 14456520 positive integers (up to 15661243) that are relatively prime to 15661243.
15661243 has 4 divisors, whose sum is 16865968
The reverse of 15661243 is 34216651
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
fifteen million six hundred sixty-one thousand two hundred forty-three
Scientific notation
1.5661243 × 10^7
Engineering notation
1.5661243 × 10^6
Prime Factorization
13 × 1204711
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15661243
Product of the distinct prime numbers
The prime factorization of 15661243 is 13 × 1204711.
Since it has a total of 2 prime factors.
3 , 9 , 94 , 48 , 739 , 735 , 3166 , 6283 , 93076 , 21479 , 96451 , 587518 , 8705707 , 5566553 , 29771268 , 51725587 , 74835093 , 285365668 , 7314855489 , 6680229596
n×2
31322486
n×3
46983729
n×4
62644972
n×5
78306215
n÷2
7830621.5
n÷3
5220414.3333333
n÷3
3915310.75
n÷5
3132248.6
n2
245274532305049
n3
3.8413040521407E+21
n4
6.0159596197461E+28
n5
9.4217405483031E+35
2 √n
3957.4288370102
3 √n
250.19314673892
4 √n
62.908098342028
5 √n
27.476742619387
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
-15661242
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 15661243 can be divided by 4 positive divisors.
The sum of these divisors (counting 15661243) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011101111100010111011
3
Ternary
1002110200012001
4
Quaternary
323233202323
5
Quinary
13002124433
6
Senary
1315401431
8
Octal
73574273
10
Decimal
15661243
12
Duodecimal
52b3277
16
Hexadecimal
eef8bb
20
Vigesimal
4hhd23
36
Base36
9boaj
md5
2b2ff299aade71477aabfbf2586c45f5
sha1
b24e5362f59395de3079e1fffe19945a90078ee1
sha256
7372ca4070a3fb75937760f58688ff9984c9b2b345285806ad4ed027e8ddf01e
sha512
b2ca7ad93c619598c98578d0daf50e37e2522b598005cd9ea98beb0f303f00d7048b2de14eedd6b77542e0adea6fc187dda531b308b52b8f5e99dc0d550c3b8a
ripemd-160
d4af6baec7b095221fd7d08ae296c0dd81e5705c
Diameter
31322486
Circumference
98402491.909769
Area
7.7055266880221E+14
Volume
1.6090416787213E+22
Surface area
3.0822106752089E+15
Circumference
98402491.909769
Perimeter
62644972
Area
245274532305049
Diagonal
22148342.254221
Surface area
1471647193830294
Volume
3.8413040521407E+21
Space diagonal
27126068.585682
Perimeter
46983729
Area
1.0620698793876E+14
Altitude
13563034.292841
Surface area
1.0620698793876E+14
Volume
4.5270202397801E+20
Height
7382780.7514069