20138870 is an even 8-digits composite number following 20138869
and preceding 20138871 . In scientific notation, it is written as 2.0138870 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors.
There are 8001600 positive integers (up to 20138870) that are relatively prime to 20138870.
20138870 has 16 divisors, whose sum is 36492768
The reverse of 20138870 is 07883102
Previous prime number is 151
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred thirty-eight thousand eight hundred seventy
Scientific notation
2.0138870 × 10^7
Engineering notation
2.0138870 × 10^6
Prime Factorization
2 × 5 × 151 × 13337
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20138870
Product of the distinct prime numbers
The prime factorization of 20138870 is 2 × 5 × 151 × 13337.
Since it has a total of 4 prime factors.
2 , 7 , 100 , 20 , 758 , 346 , 2881 , 4006 , 99848 , 25825 , 69431 , 581735 , 3152536 , 5702778 , 41327967 , 62738877 , 574762396 , 420184210 , 4780160923 , 4253613617
n×2
40277740
n×3
60416610
n×4
80555480
n×5
100694350
n÷2
10069435
n÷3
6712956.6666667
n÷3
5034717.5
n÷5
4027774
n2
405574084876900
n3
8.1678037707049E+21
n4
1.6449033832373E+29
n5
3.3126495397577E+36
2 √n
4487.6352347311
3 √n
272.06856511101
4 √n
66.989814410335
5 √n
28.893956837571
1 , 2 , 5 , 10 , 151 , 302 , 755 , 1510 , 13337 , 26674 , 66685 , 133370 , 2013887 , 4027774 , 10069435 , 20138870
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
-20138869
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 20138870 can be divided by 16 positive divisors.
The sum of these divisors (counting 20138870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100101101110110
3
Ternary
1101220011100002
4
Quaternary
1030310231312
5
Quinary
20123420440
6
Senary
1555351302
8
Octal
114645566
10
Decimal
20138870
12
Duodecimal
68b2532
16
Hexadecimal
1334b76
20
Vigesimal
65h73a
36
Base36
bzn92
md5
056921dc6be6f05281309288db7d9e66
sha1
8e9e3fcf58e2f3a4f1fe4a565f8a10e8ca924542
sha256
056aaa162a4d60eb110fab9c10cd8bd6c11f4058a6aa9c07aec12f06beff7c1b
sha512
350cec6b46537bd025fd69cc87e2d754d0be84028cdcaa4eb5e5ee28697819e5948d614f6e7221c8046382a46bf43cbe4bad00d73d1ad46992f464d75fa76eec
ripemd-160
f5f2d6c32587dea683e0b556d5605ba9f2050339
Diameter
40277740
Circumference
126536252.0872
Area
1.2741485655357E+15
Volume
3.4213216429346E+22
Surface area
5.0965942621427E+15
Circumference
126536252.0872
Perimeter
80555480
Area
405574084876900
Diagonal
28480663.084869
Surface area
2433444509261400
Volume
8.1678037707049E+21
Space diagonal
34881546.047025
Perimeter
60416610
Area
1.7561873031001E+14
Altitude
17440773.023512
Surface area
1.7561873031001E+14
Volume
9.6258490561108E+20
Height
9493554.3616229