20146987 is an odd 8-digits composite number following 20146986
and preceding 20146988 . In scientific notation, it is written as 2.0146987 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors.
There are 17164896 positive integers (up to 20146987) that are relatively prime to 20146987.
20146987 has 12 divisors, whose sum is 23577480
The reverse of 20146987 is 78964102
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million one hundred forty-six thousand nine hundred eighty-seven
Scientific notation
2.0146987 × 10^7
Engineering notation
2.0146987 × 10^6
Prime Factorization
7 × 7 × 179 × 2297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2878141
Product of the distinct prime numbers
The prime factorization of 20146987 is 7 × 7 × 179 × 2297.
Since it has a total of 4 prime factors.
5 , 8 , 33 , 7 , 140 , 427 , 9254 , 9497 , 8002 , 77688 , 460311 , 241037 , 1271444 , 7302298 , 19895003 , 70051010 , 945316348 , 327957300 , 7512522387 , 5926788701
n×2
40293974
n×3
60440961
n×4
80587948
n×5
100734935
n÷2
10073493.5
n÷3
6715662.3333333
n÷3
5036746.75
n÷5
4029397.4
n2
405901085178169
n3
8.1776838863705E+21
n4
1.6475569094882E+29
n5
3.3193307637218E+36
2 √n
4488.5395174823
3 √n
272.10511274108
4 √n
66.996563475168
5 √n
28.896285612178
1 , 7 , 49 , 179 , 1253 , 2297 , 8771 , 16079 , 112553 , 411163 , 2878141 , 20146987
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
-20146986
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 20146987 can be divided by 12 positive divisors.
The sum of these divisors (counting 20146987) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100110110101100101011
3
Ternary
1101220120110201
4
Quaternary
1030312230223
5
Quinary
20124200422
6
Senary
1555453031
8
Octal
114665453
10
Decimal
20146987
12
Duodecimal
68b7177
16
Hexadecimal
1336b2b
20
Vigesimal
65i797
36
Base36
bztij
md5
e10c19cdd752d08ef21733b1b1348624
sha1
1394cb1acf0dc160e71a12a74d04fb41cdf063bc
sha256
c223ed2646fa1db26cba97bf7a6376a912733e9df51657dc777a9d5bf80ee8db
sha512
437207b1fae7211920d7d762cea72c728ab1c622ea4b67376d56a6f3483dfb7656824343eb1e183d81db26a79dbddf635ef954e49110efc3efdca7a58bb72b0e
ripemd-160
9ad2476079eb9040c148d79ec51e5f7e2e703686
Diameter
40293974
Circumference
126587252.70234
Area
1.2751758672799E+15
Volume
3.4254602161068E+22
Surface area
5.1007034691194E+15
Circumference
126587252.70234
Perimeter
80587948
Area
405901085178169
Diagonal
28492142.256354
Surface area
2435406511069014
Volume
8.1776838863705E+21
Space diagonal
34895605.10343
Perimeter
60440961
Area
1.7576032559398E+14
Altitude
17447802.551715
Surface area
1.7576032559398E+14
Volume
9.6374928840875E+20
Height
9497380.7521181