20157489 is an odd 8-digits composite number following 20157488
and preceding 20157490 . In scientific notation, it is written as 2.0157489 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 11884320 positive integers (up to 20157489) that are relatively prime to 20157489.
20157489 has 12 divisors, whose sum is 29193216
The reverse of 20157489 is 98475102
Previous prime number is 407
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million one hundred fifty-seven thousand four hundred eighty-nine
Scientific notation
2.0157489 × 10^7
Engineering notation
2.0157489 × 10^6
Prime Factorization
3 × 3 × 407 × 5503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6719163
Product of the distinct prime numbers
The prime factorization of 20157489 is 3 × 3 × 407 × 5503.
Since it has a total of 4 prime factors.
9 , 7 , 95 , 39 , 569 , 171 , 7110 , 4093 , 95711 , 99277 , 611487 , 351817 , 8865690 , 2118531 , 26577566 , 39105740 , 196684905 , 697750944 , 265113957 , 400726295
n×2
40314978
n×3
60472467
n×4
80629956
n×5
100787445
n÷2
10078744.5
n÷3
6719163
n÷3
5039372.25
n÷5
4031497.8
n2
406324362785121
n3
8.1904788732731E+21
n4
1.6509948779273E+29
n5
3.3279911090877E+36
2 √n
4489.7092333469
3 √n
272.15238451599
4 √n
67.00529257713
5 √n
28.899297531883
1 , 3 , 9 , 407 , 1221 , 3663 , 5503 , 16509 , 49527 , 2239721 , 6719163 , 20157489
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
-20157488
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 20157489 can be divided by 12 positive divisors.
The sum of these divisors (counting 20157489) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111001010000110001
3
Ternary
1101221002212200
4
Quaternary
1030321100301
5
Quinary
20130014424
6
Senary
2000013413
8
Octal
114712061
10
Decimal
20157489
12
Duodecimal
6901269
16
Hexadecimal
1339431
20
Vigesimal
65jde9
36
Base36
c01m9
md5
014a9be98b5497ad98942fe222e45bf2
sha1
a1455f2be8dad009f06fa9aeedfca0a98b6666ed
sha256
67708f95e47373ca62404b5240042b4d0dcf84f006b8f0065e2f0366571d25aa
sha512
eef1b10dfdbdb840904e9252eba92f0880570fda7eb24baa45392adbe141edb5bb8c930d378780024feeeb4114bde80ae0d5ea026bce8b81372159f7ae839092
ripemd-160
3af6573102c7e2eed6eecff00cc253fad46b3763
Diameter
40314978
Circumference
126653238.71443
Area
1.2765056331003E+15
Volume
3.4308197676876E+22
Surface area
5.1060225324012E+15
Circumference
126653238.71443
Perimeter
80629956
Area
406324362785121
Diagonal
28506994.327186
Surface area
2437946176710726
Volume
8.1904788732731E+21
Space diagonal
34913795.101011
Perimeter
60472467
Area
1.7594361017422E+14
Altitude
17456897.550505
Surface area
1.7594361017422E+14
Volume
9.6525719207609E+20
Height
9502331.4423955