15661245 is an odd 8-digits composite number following 15661244
and preceding 15661246 . In scientific notation, it is written as 1.5661245 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 8158080 positive integers (up to 15661245) that are relatively prime to 15661245.
15661245 has 8 divisors, whose sum is 20979648
The reverse of 15661245 is 54216651
Previous prime number is 215
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
fifteen million six hundred sixty-one thousand two hundred forty-five
Scientific notation
1.5661245 × 10^7
Engineering notation
1.5661245 × 10^6
Prime Factorization
3 × 215 × 24281
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15661245
Product of the distinct prime numbers
The prime factorization of 15661245 is 3 × 215 × 24281.
Since it has a total of 3 prime factors.
9 , 6 , 61 , 76 , 399 , 570 , 3352 , 1379 , 15231 , 6962 , 641998 , 40487 , 7173433 , 8046874 , 94679042 , 1245125 , 613891547 , 893864467 , 6179448161 , 8820056013
n×2
31322490
n×3
46983735
n×4
62644980
n×5
78306225
n÷2
7830622.5
n÷3
5220415
n÷3
3915311.25
n÷5
3132249
n2
245274594950025
n3
3.8413055237881E+21
n4
6.0159626927899E+28
n5
9.4217465642642E+35
2 √n
3957.4290896995
3 √n
250.19315738912
4 √n
62.908100350428
5 √n
27.476743321164
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-15661244
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15661245 can be divided by 8 positive divisors.
The sum of these divisors (counting 15661245) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011101111100010111101
3
Ternary
1002110200012010
4
Quaternary
323233202331
5
Quinary
13002124440
6
Senary
1315401433
8
Octal
73574275
10
Decimal
15661245
12
Duodecimal
52b3279
16
Hexadecimal
eef8bd
20
Vigesimal
4hhd25
36
Base36
9boal
md5
2ec50edf29584a4dec370b3bad2e9aba
sha1
e4cf45e843704c10bc15f8d5e6c261a61c8a9024
sha256
1421cac84da733927e227f4894f09b75ffa7f03a0222d87c0c17a29e99602cd4
sha512
649d7d2cce659e070bc867268523193a0488b4cbc2ab679a67e6ec8031cbc7d3334f1f0cacd68d0d447ee1a23db3634cca132a239aabc208cec8b8d80a23d34f
ripemd-160
9379fba2900d068f1018c6541494d59aa2412880
Diameter
31322490
Circumference
98402504.47614
Area
7.7055286560721E+14
Volume
1.6090422951635E+22
Surface area
3.0822114624288E+15
Circumference
98402504.47614
Perimeter
62644980
Area
245274594950025
Diagonal
22148345.082648
Surface area
1471647569700150
Volume
3.8413055237881E+21
Space diagonal
27126072.049784
Perimeter
46983735
Area
1.0620701506483E+14
Altitude
13563036.024892
Surface area
1.0620701506483E+14
Volume
4.5270219741332E+20
Height
7382781.6942159