20989847 is an odd 8-digits prime number following 20989846
and preceding 20989848 . In scientific notation, it is written as 2.0989847 × 10^7.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 20989846 positive integers (up to 20989847) that are relatively prime to 20989847.
20989847 has 2 divisors, whose sum is 20989848
The reverse of 20989847 is 74898902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred eighty-nine thousand eight hundred forty-seven
Scientific notation
2.0989847 × 10^7
Engineering notation
2.0989847 × 10^6
Prime Factorization
20989847
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20989847
Product of the distinct prime numbers
The prime factorization of 20989847 is 20989847.
Since it has a total of 1 prime factors.
8 , 10 , 87 , 7 , 582 , 671 , 2360 , 6879 , 75415 , 77786 , 767874 , 739057 , 3662112 , 577575 , 90074072 , 71562639 , 107654576 , 172003691 , 8481334929 , 1438690853
n×2
41979694
n×3
62969541
n×4
83959388
n×5
104949235
n÷2
10494923.5
n÷3
6996615.6666667
n÷3
5247461.75
n÷5
4197969.4
n2
440573677083409
n3
9.2475740742082E+21
n4
1.941051649388E+29
n5
4.0742377139751E+36
2 √n
4581.467777907
3 √n
275.84794799898
4 √n
67.686540596392
5 √n
29.134116637918
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20989848
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10494924
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4581.4678870423
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047158
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20989847 can be divided by 2 positive divisors.
The sum of these divisors (counting 20989847) is 20989848, the average is 10494924.
Base
System
Value
2
Binary
1010000000100011110010111
3
Ternary
1110111101122202
4
Quaternary
1100010132113
5
Quinary
20333133342
6
Senary
2025515115
8
Octal
120043627
10
Decimal
20989847
12
Duodecimal
7042a9b
16
Hexadecimal
1404797
20
Vigesimal
6b3ec7
36
Base36
chvvb
md5
ae70457542bacf307bec330b9b44909b
sha1
0df9901fb2d9920497b141314d02f0240fdef71f
sha256
132acc1e23d1d00768cd72b3f5ee9cbdbc5bb2d68f38cbb16865df2a6ef7cdc3
sha512
049ce6595817db9394ecbd530ef0ab48fda562251a2b592e851c4e4f4b6b5b5608350d2781e74d2f1116a617ba26c83b80649372940532e56b3dfaa568c4d09f
ripemd-160
70262326365e875e93aef640fceb4c9d25e929f5
Diameter
41979694
Circumference
131883098.27035
Area
1.3841030272903E+15
Volume
3.873614770008E+22
Surface area
5.5364121091611E+15
Circumference
131883098.27035
Perimeter
83959388
Area
440573677083409
Diagonal
29684126.299536
Surface area
2643442062500454
Volume
9.2475740742082E+21
Space diagonal
36355481.447097
Perimeter
62969541
Area
1.9077399829648E+14
Altitude
18177740.723549
Surface area
1.9077399829648E+14
Volume
1.0898370562329E+21
Height
9894708.7665121