20155871 is an odd 8-digits composite number following 20155870
and preceding 20155872 . In scientific notation, it is written as 2.0155871 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20145000 positive integers (up to 20155871) that are relatively prime to 20155871.
20155871 has 4 divisors, whose sum is 20166744
The reverse of 20155871 is 17855102
Previous prime number is 2371
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-five thousand eight hundred seventy-one
Scientific notation
2.0155871 × 10^7
Engineering notation
2.0155871 × 10^6
Prime Factorization
2371 × 8501
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155871
Product of the distinct prime numbers
The prime factorization of 20155871 is 2371 × 8501.
Since it has a total of 2 prime factors.
3 , 10 , 75 , 58 , 858 , 143 , 7861 , 6105 , 94230 , 10599 , 322103 , 837595 , 5773062 , 7305663 , 75791688 , 79748522 , 754363853 , 184502076 , 2599171048 , 4012393143
n×2
40311742
n×3
60467613
n×4
80623484
n×5
100779355
n÷2
10077935.5
n÷3
6718623.6666667
n÷3
5038967.75
n÷5
4031174.2
n2
406259135768641
n3
8.1885067331242E+21
n4
1.6504648539548E+29
n5
3.3266556686347E+36
2 √n
4489.5290398883
3 √n
272.14510261792
4 √n
67.003947942552
5 √n
28.898833579604
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
-20155870
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 20155871 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000110111011111
3
Ternary
1101221000122202
4
Quaternary
1030320313133
5
Quinary
20124441441
6
Senary
2000002115
8
Octal
114706737
10
Decimal
20155871
12
Duodecimal
690033b
16
Hexadecimal
1338ddf
20
Vigesimal
65j9db
36
Base36
c00db
md5
0f031d79797ace261504822b82128606
sha1
d46c4ff0400596089188a478ce41edf671b74ce7
sha256
77eabea05d0bea2de57f82a346754b4c0de5b4f0b3efa30614f98d55db694628
sha512
eb94d74869b3e03628c4d429c1e27d460df89bdabe12378f5fc1acbcff9521237776e1590e3e90f3f10c095efe2383705ddcdbcad124448f130a32ac1610ce3d
ripemd-160
12920228b90a3e00e9b1fc9c31158b0284becf52
Diameter
40311742
Circumference
126643072.52061
Area
1.2763007163845E+15
Volume
3.4299936795538E+22
Surface area
5.105202865538E+15
Circumference
126643072.52061
Perimeter
80623484
Area
406259135768641
Diagonal
28504706.129643
Surface area
2437554814611846
Volume
8.1885067331242E+21
Space diagonal
34910992.642804
Perimeter
60467613
Area
1.7591536604758E+14
Altitude
17455496.321402
Surface area
1.7591536604758E+14
Volume
9.6502477313064E+20
Height
9501568.7098809