20989851 is an odd 8-digits composite number following 20989850
and preceding 20989852 . In scientific notation, it is written as 2.0989851 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 13256712 positive integers (up to 20989851) that are relatively prime to 20989851.
20989851 has 8 divisors, whose sum is 29459520
The reverse of 20989851 is 15898902
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred eighty-nine thousand eight hundred fifty-one
Scientific notation
2.0989851 × 10^7
Engineering notation
2.0989851 × 10^6
Prime Factorization
3 × 19 × 368243
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989851
Product of the distinct prime numbers
The prime factorization of 20989851 is 3 × 19 × 368243.
Since it has a total of 3 prime factors.
3 , 1 , 22 , 76 , 467 , 567 , 9811 , 4192 , 587 , 35381 , 197621 , 494091 , 136332 , 2412896 , 63546977 , 83689634 , 860027342 , 501667576 , 532034853 , 4417971868
n×2
41979702
n×3
62969553
n×4
83959404
n×5
104949255
n÷2
10494925.5
n÷3
6996617
n÷3
5247462.75
n÷5
4197970.2
n2
440573845002201
n3
9.2475793610933E+21
n4
1.9410531290002E+29
n5
4.0742415960799E+36
2 √n
4581.4682144483
3 √n
275.84796552161
4 √n
67.686543821119
5 √n
29.134117748326
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20989850
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20989851 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989851) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100011110011011
3
Ternary
1110111101122220
4
Quaternary
1100010132123
5
Quinary
20333133401
6
Senary
2025515123
8
Octal
120043633
10
Decimal
20989851
12
Duodecimal
7042aa3
16
Hexadecimal
140479b
20
Vigesimal
6b3ecb
36
Base36
chvvf
md5
06e7f33d5be99abf817e85008caef815
sha1
a24ecd61a2cf3b0c479d87e370ca5b314036a484
sha256
95b88a8650d722f78b9526b70da98b671d8bd47f90d13ef06efbde9535237fec
sha512
168ecbb30534e48146a234a45751b5e13564815d31b93ceef5cad7da17cc8af4d105de35fe5d3c4593fee7ef349a7695d04d07e40205e19ce75a5ce067cbb860
ripemd-160
c259857ab1ccb6589373d512786712dbb67cf929
Diameter
41979702
Circumference
131883123.40309
Area
1.3841035548227E+15
Volume
3.8736169845732E+22
Surface area
5.5364142192909E+15
Circumference
131883123.40309
Perimeter
83959404
Area
440573845002201
Diagonal
29684131.95639
Surface area
2643443070013206
Volume
9.2475793610933E+21
Space diagonal
36355488.3753
Perimeter
62969553
Area
1.9077407100745E+14
Altitude
18177744.18765
Surface area
1.9077407100745E+14
Volume
1.0898376792983E+21
Height
9894710.6521302