20151405 is an odd 8-digits composite number following 20151404
and preceding 20151406 . In scientific notation, it is written as 2.0151405 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 10712160 positive integers (up to 20151405) that are relatively prime to 20151405.
20151405 has 16 divisors, whose sum is 28753920
The reverse of 20151405 is 50415102
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred fifty-one thousand four hundred five
Scientific notation
2.0151405 × 10^7
Engineering notation
2.0151405 × 10^6
Prime Factorization
3 × 15 × 431 × 1039
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20151405
Product of the distinct prime numbers
The prime factorization of 20151405 is 3 × 15 × 431 × 1039.
Since it has a total of 4 prime factors.
9 , 6 , 51 , 83 , 675 , 391 , 8601 , 5224 , 72306 , 42703 , 26634 , 915507 , 5757194 , 3756347 , 99661331 , 39145471 , 714858674 , 970449192 , 9509524312 , 4101415391
n×2
40302810
n×3
60454215
n×4
80605620
n×5
100757025
n÷2
10075702.5
n÷3
6717135
n÷3
5037851.25
n÷5
4030281
n2
406079123474025
n3
8.1830648791701E+21
n4
1.6490025452143E+29
n5
3.3229718134645E+36
2 √n
4489.0316327689
3 √n
272.12500111654
4 √n
67.000236065024
5 √n
28.89755282492
1 , 3 , 15 , 45 , 431 , 1039 , 1293 , 3117 , 6465 , 15585 , 19395 , 46755 , 447809 , 1343427 , 6717135 , 20151405
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20151404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20151405 can be divided by 16 positive divisors.
The sum of these divisors (counting 20151405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110111110001101101
3
Ternary
1101220210112100
4
Quaternary
1030313301231
5
Quinary
20124321110
6
Senary
1555525313
8
Octal
114676155
10
Decimal
20151405
12
Duodecimal
68b9839
16
Hexadecimal
1337c6d
20
Vigesimal
65iia5
36
Base36
bzwx9
md5
363a0f563794362d18dcbd6d9f4d1ce1
sha1
6ae48c33c5993ca929ec0136bb7c5383bfcce267
sha256
c7ff841a77afdc1de6e469932b499b5e2a93e17a7b63a9d47b28332e949edacf
sha512
3ad632fc68707b69e6e47f3cb245642fdfc3893610b9c4cafe1683698891d0f2cffcbfa4937e48c70d0c1983d1aaaff0c33c3c261f57608aa2648530dd08911f
ripemd-160
606fe1191f3ae0c65f614c483951b962c67970ae
Diameter
40302810
Circumference
126615011.81503
Area
1.2757351910822E+15
Volume
3.4277142010999E+22
Surface area
5.1029407643287E+15
Circumference
126615011.81503
Perimeter
80605620
Area
406079123474025
Diagonal
28498390.251873
Surface area
2436474740844150
Volume
8.1830648791701E+21
Space diagonal
34903257.303898
Perimeter
60454215
Area
1.7583741843751E+14
Altitude
17451628.651949
Surface area
1.7583741843751E+14
Volume
9.6438344449177E+20
Height
9499463.417291