20161687 is an odd 8-digits composite number following 20161686
and preceding 20161688 . In scientific notation, it is written as 2.0161687 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 15422400 positive integers (up to 20161687) that are relatively prime to 20161687.
20161687 has 16 divisors, whose sum is 22892800
The reverse of 20161687 is 78616102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred sixty-one thousand six hundred eighty-seven
Scientific notation
2.0161687 × 10^7
Engineering notation
2.0161687 × 10^6
Prime Factorization
49 × 31 × 13 × 1021
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20161687
Product of the distinct prime numbers
The prime factorization of 20161687 is 49 × 31 × 13 × 1021.
Since it has a total of 4 prime factors.
3 , 1 , 92 , 75 , 491 , 128 , 1465 , 496 , 31900 , 32409 , 178528 , 594736 , 5017967 , 4537417 , 90341997 , 64825986 , 212660599 , 2841935 , 5881637975 , 5377624266
n×2
40323374
n×3
60485061
n×4
80646748
n×5
100808435
n÷2
10080843.5
n÷3
6720562.3333333
n÷3
5040421.75
n÷5
4032337.4
n2
406493622685969
n3
8.1955971880906E+21
n4
1.6523706528436E+29
n5
3.3314579910619E+36
2 √n
4490.1767225801
3 √n
272.17127602917
4 √n
67.008780936382
5 √n
28.900501145547
1 , 13 , 31 , 49 , 403 , 637 , 1021 , 1519 , 13273 , 19747 , 31651 , 50029 , 411463 , 650377 , 1550899 , 20161687
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
-20161686
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 20161687 can be divided by 16 positive divisors.
The sum of these divisors (counting 20161687) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111010010010010111
3
Ternary
1101221022122011
4
Quaternary
1030322102113
5
Quinary
20130133222
6
Senary
2000045051
8
Octal
114722227
10
Decimal
20161687
12
Duodecimal
6903787
16
Hexadecimal
133a497
20
Vigesimal
660447
36
Base36
c04uv
md5
98607abc72580326b14c4429150c7253
sha1
0fd5f2e60990dc9b817705edb7d207cc482b2e9c
sha256
3db4ae5c13959e5c57376781d4aafcaf829fdcf72e0c1dc2120a7f76cd3e3a00
sha512
b72f03502b5c264acb31dc2b19477c2081e29b4859f179181e3d30b08a25309dd54b06e281ad4a5fd4298ea4ed280de4960f316c06e2f27c16ed5a89f8b9d92d
ripemd-160
06b6d843b33bb7eb8890d45d0b07f2442acf00bf
Diameter
40323374
Circumference
126679615.52635
Area
1.2770373787613E+15
Volume
3.4329637223849E+22
Surface area
5.1081495150454E+15
Circumference
126679615.52635
Perimeter
80646748
Area
406493622685969
Diagonal
28512931.195721
Surface area
2438961736115814
Volume
8.1955971880906E+21
Space diagonal
34921066.250301
Perimeter
60485061
Area
1.7601690186121E+14
Altitude
17460533.12515
Surface area
1.7601690186121E+14
Volume
9.6586039126204E+20
Height
9504310.3985738