15742989 is an odd 8-digits composite number following 15742988
and preceding 15742990 . In scientific notation, it is written as 1.5742989 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 10495320 positive integers (up to 15742989) that are relatively prime to 15742989.
15742989 has 4 divisors, whose sum is 17492220
The reverse of 15742989 is 98924751
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
fifteen million seven hundred forty-two thousand nine hundred eighty-nine
Scientific notation
1.5742989 × 10^7
Engineering notation
1.5742989 × 10^6
Prime Factorization
9 × 1749221
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15742989
Product of the distinct prime numbers
The prime factorization of 15742989 is 9 × 1749221.
Since it has a total of 2 prime factors.
3 , 8 , 76 , 2 , 190 , 142 , 9905 , 4980 , 56296 , 91599 , 434002 , 205463 , 2740921 , 7891396 , 4711895 , 63881231 , 952408467 , 668530206 , 7310278511 , 3666393248
n×2
31485978
n×3
47228967
n×4
62971956
n×5
78714945
n÷2
7871494.5
n÷3
5247663
n÷3
3935747.25
n÷5
3148597.8
n2
247841702654121
n3
3.9017691986251E+21
n4
6.1425509574494E+28
n5
9.6702112155065E+35
2 √n
3967.7435653026
3 √n
250.62769733189
4 √n
62.990027506762
5 √n
27.505366642092
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
-15742988
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 15742989 can be divided by 4 positive divisors.
The sum of these divisors (counting 15742989) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100000011100000001101
3
Ternary
1002121211022200
4
Quaternary
330003200031
5
Quinary
13012233424
6
Senary
1321232113
8
Octal
74034015
10
Decimal
15742989
12
Duodecimal
5332639
16
Hexadecimal
f0380d
20
Vigesimal
4i7h99
36
Base36
9dfd9
md5
c0054dd648e4330a53e5bd0b40b511ea
sha1
39c9f7bf6cd2cba10f58534f33c96aeb64e9bdc7
sha256
e46d836523040350368a2a1fc9535cfddf237b817bbd06bab8071a474e3ca4b2
sha512
c706c83c96ce08b0513b60944b81d2ef77dcf9ce03332b128915d43ee527678e19d0f297a4b386691885497ed5cf465ce4348e4d0100decaad92ebb2cff3cefd
ripemd-160
3b186a1e8f3deb70cd09e6efc0f838b2e64bd338
Diameter
31485978
Circumference
98916117.17589
Area
7.7861767231137E+14
Volume
1.6343692600538E+22
Surface area
3.1144706892455E+15
Circumference
98916117.17589
Perimeter
62971956
Area
247841702654121
Diagonal
22263948.55609
Surface area
1487050215924726
Volume
3.9017691986251E+21
Space diagonal
27267656.810998
Perimeter
47228967
Area
1.0731860530783E+14
Altitude
13633828.405499
Surface area
1.0731860530783E+14
Volume
4.5982790982877E+20
Height
7421316.1853635