15390981 is an odd 8-digits composite number following 15390980
and preceding 15390982 . In scientific notation, it is written as 1.5390981 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 10160424 positive integers (up to 15390981) that are relatively prime to 15390981.
15390981 has 12 divisors, whose sum is 22448608
The reverse of 15390981 is 18909351
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
fifteen million three hundred ninety thousand nine hundred eighty-one
Scientific notation
1.5390981 × 10^7
Engineering notation
1.5390981 × 10^6
Prime Factorization
3 × 3 × 103 × 16603
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5130327
Product of the distinct prime numbers
The prime factorization of 15390981 is 3 × 3 × 103 × 16603.
Since it has a total of 4 prime factors.
5 , 5 , 1 , 66 , 967 , 949 , 3612 , 7170 , 65198 , 37413 , 608274 , 339871 , 6685783 , 4527907 , 98136345 , 85367181 , 642258140 , 639624918 , 4559907500 , 6978096152
n×2
30781962
n×3
46172943
n×4
61563924
n×5
76954905
n÷2
7695490.5
n÷3
5130327
n÷3
3847745.25
n÷5
3078196.2
n2
236882296142361
n3
3.6458509191635E+21
n4
5.6113222225677E+28
n5
8.6363753712418E+35
2 √n
3923.1340787692
3 √n
248.74561526912
4 √n
62.634926987817
5 √n
27.381249362418
1 , 3 , 9 , 103 , 309 , 927 , 16603 , 49809 , 149427 , 1710109 , 5130327 , 15390981
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-15390980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15390981 can be divided by 12 positive divisors.
The sum of these divisors (counting 15390981) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111010101101100100000101
3
Ternary
1001221221110100
4
Quaternary
322231210011
5
Quinary
12420002411
6
Senary
1305514313
8
Octal
72554405
10
Decimal
15390981
12
Duodecimal
51a2999
16
Hexadecimal
ead905
20
Vigesimal
4g3h91
36
Base36
95vr9
md5
eb422cbe95d7213b0895c57652bdbb25
sha1
540e99707a08b32a1e21134dcb13589d27a20180
sha256
82a5b39a74e8c7359afe366c3b6515af4e30f636b6bf8de82010db7032cc6524
sha512
40fba1e2e7a6af133e72fcb168721fc24c75c96cf1e02d3b261e06a87fae4b3f419835554fb44d616439d131c26176037da930a83a2050847695a9189de744f7
ripemd-160
2cd50a86093ece8ccb19ea92a9e2e7b66379a409
Diameter
30781962
Circumference
96704385.68228
Area
7.4418768132632E+14
Volume
1.5271704618303E+22
Surface area
2.9767507253053E+15
Circumference
96704385.68228
Perimeter
61563924
Area
236882296142361
Diagonal
21766134.068427
Surface area
1421293776854166
Volume
3.6458509191635E+21
Space diagonal
26657961.070327
Perimeter
46172943
Area
1.0257304308304E+14
Altitude
13328980.535164
Surface area
1.0257304308304E+14
Volume
4.2966765135595E+20
Height
7255378.0228089