20170990 is an even 8-digits composite number following 20170989
and preceding 20170991 . In scientific notation, it is written as 2.0170990 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 32 positive divisors.
There are 6767520 positive integers (up to 20170990) that are relatively prime to 20170990.
20170990 has 32 divisors, whose sum is 42384384
The reverse of 20170990 is 09907102
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred seventy thousand nine hundred ninety
Scientific notation
2.0170990 × 10^7
Engineering notation
2.0170990 × 10^6
Prime Factorization
2 × 5 × 7 × 47 × 6131
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20170990
Product of the distinct prime numbers
The prime factorization of 20170990 is 2 × 5 × 7 × 47 × 6131.
Since it has a total of 5 prime factors.
8 , 7 , 34 , 36 , 828 , 310 , 6004 , 8446 , 3823 , 41546 , 900607 , 109135 , 4074322 , 9712315 , 15274121 , 87571241 , 227011542 , 970419683 , 4936880193 , 2054732823
n×2
40341980
n×3
60512970
n×4
80683960
n×5
100854950
n÷2
10085495
n÷3
6723663.3333333
n÷3
5042747.5
n÷5
4034198
n2
406868837580100
n3
8.2069472541398E+21
n4
1.6554225099378E+29
n5
3.3391510893731E+36
2 √n
4491.2125311546
3 √n
272.21313132367
4 √n
67.016509392497
5 √n
28.903167705669
1 , 2 , 5 , 7 , 10 , 14 , 35 , 47 , 70 , 94 , 235 , 329 , 470 , 658 , 1645 , 3290 , 6131 , 12262 , 30655 , 42917 , 61310 , 85834 , 214585 , 288157 , 429170 , 576314 , 1440785 , 2017099 , 2881570 , 4034198 , 10085495 , 20170990
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20170989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20170990 can be divided by 32 positive divisors.
The sum of these divisors (counting 20170990) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100111100100011101110
3
Ternary
1101221210101201
4
Quaternary
1030330203232
5
Quinary
20130432430
6
Senary
2000200114
8
Octal
114744356
10
Decimal
20170990
12
Duodecimal
690903a
16
Hexadecimal
133c8ee
20
Vigesimal
66179a
36
Base36
c0c1a
md5
68e0240db763915ec7d07c6656d76bb6
sha1
6ce70c38c4a302ff514a39b5d8d7979d5d801c61
sha256
1782446cf113a01b7f29b74692f93e05c10da19159845c950bb0eb65886a003e
sha512
71f1b1600e90299827b411435e388b127089782d308a1fc54be88fc44383304a9b148a0d067de38e56c38ed871763a443b076456940bae8361807ce4072ee90f
ripemd-160
cfbbbf2a660460477c3852631e68bccd1b5b40f8
Diameter
40341980
Circumference
126738067.99927
Area
1.2782161511163E+15
Volume
3.4377180269339E+22
Surface area
5.112864604465E+15
Circumference
126738067.99927
Perimeter
80683960
Area
406868837580100
Diagonal
28526087.624492
Surface area
2441213025480600
Volume
8.2069472541398E+21
Space diagonal
34937179.518964
Perimeter
60512970
Area
1.7617937467631E+14
Altitude
17468589.759482
Surface area
1.7617937467631E+14
Volume
9.6719800937376E+20
Height
9508695.8748307