20170891 is an odd 8-digits composite number following 20170890
and preceding 20170892 . In scientific notation, it is written as 2.0170891 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 17339904 positive integers (up to 20170891) that are relatively prime to 20170891.
20170891 has 16 divisors, whose sum is 23242464
The reverse of 20170891 is 19807102
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred seventy thousand eight hundred ninety-one
Scientific notation
2.0170891 × 10^7
Engineering notation
2.0170891 × 10^6
Prime Factorization
17 × 13 × 107 × 853
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20170891
Product of the distinct prime numbers
The prime factorization of 20170891 is 17 × 13 × 107 × 853.
Since it has a total of 4 prime factors.
2 , 5 , 93 , 53 , 408 , 599 , 2111 , 5470 , 31549 , 50131 , 131077 , 777481 , 5718765 , 6768126 , 65110145 , 11277424 , 3062718 , 797949192 , 6141395572 , 7080884070
n×2
40341782
n×3
60512673
n×4
80683564
n×5
100854455
n÷2
10085445.5
n÷3
6723630.3333333
n÷3
5042722.75
n÷5
4034178.2
n2
406864843733881
n3
8.2068264146881E+21
n4
1.655390010666E+29
n5
3.3390691467632E+36
2 √n
4491.2015096186
3 √n
272.21268597874
4 √n
67.016427162439
5 √n
28.90313933404
1 , 13 , 17 , 107 , 221 , 853 , 1391 , 1819 , 11089 , 14501 , 23647 , 91271 , 188513 , 1186523 , 1551607 , 20170891
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
-20170890
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 20170891 can be divided by 16 positive divisors.
The sum of these divisors (counting 20170891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111100100010001011
3
Ternary
1101221210021001
4
Quaternary
1030330202023
5
Quinary
20130432031
6
Senary
2000155431
8
Octal
114744213
10
Decimal
20170891
12
Duodecimal
6908b77
16
Hexadecimal
133c88b
20
Vigesimal
66174b
36
Base36
c0byj
md5
02f2e9d57ba95ab76c5022e5ff1b0f43
sha1
99e5946cf1fef6118a56abbd9d07187a8d075731
sha256
78591db076590aea06c5d0a47d2bc3de79d8f897a95209dd86e8895d5ae43b71
sha512
b31ce6f44bf7d07515c353518b6657cd17b704a659e7dd217c855f22c5c14909c29466d882f13dd2c326e8c39307e69f6ade67bf8625feedcf8302f26473072b
ripemd-160
b3ac3a32ba25abebcfa53ce07ee2b42a494e5d9d
Diameter
40341782
Circumference
126737445.96392
Area
1.2782036040783E+15
Volume
3.4376674098228E+22
Surface area
5.1128144163133E+15
Circumference
126737445.96392
Perimeter
80683564
Area
406864843733881
Diagonal
28525947.617349
Surface area
2441189062403286
Volume
8.2068264146881E+21
Space diagonal
34937008.045934
Perimeter
60512673
Area
1.7617764529016E+14
Altitude
17468504.022967
Surface area
1.7617764529016E+14
Volume
9.6718376830781E+20
Height
9508649.2057831