20210749 is an odd 8-digits composite number following 20210748
and preceding 20210750 . In scientific notation, it is written as 2.0210749 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 18430320 positive integers (up to 20210749) that are relatively prime to 20210749.
20210749 has 8 divisors, whose sum is 22028832
The reverse of 20210749 is 94701202
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred ten thousand seven hundred forty-nine
Scientific notation
2.0210749 × 10^7
Engineering notation
2.0210749 × 10^6
Prime Factorization
13 × 83 × 18731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20210749
Product of the distinct prime numbers
The prime factorization of 20210749 is 13 × 83 × 18731.
Since it has a total of 3 prime factors.
10 , 7 , 62 , 86 , 539 , 935 , 6764 , 3787 , 34555 , 87336 , 661914 , 375107 , 580481 , 2018873 , 93281329 , 38480507 , 681000599 , 893084241 , 6577626659 , 2792885186
n×2
40421498
n×3
60632247
n×4
80842996
n×5
101053745
n÷2
10105374.5
n÷3
6736916.3333333
n÷3
5052687.25
n÷5
4042149.8
n2
408474375141001
n3
8.2555730689066E+21
n4
1.6685131514683E+29
n5
3.3721900507525E+36
2 √n
4495.636662365
3 √n
272.39186686832
4 √n
67.049509038955
5 √n
28.914552928419
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
-20210748
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 20210749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20210749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000110010000111101
3
Ternary
1102000210221021
4
Quaternary
1031012100331
5
Quinary
20133220444
6
Senary
2001104141
8
Octal
115062075
10
Decimal
20210749
12
Duodecimal
6928051
16
Hexadecimal
134643d
20
Vigesimal
6666h9
36
Base36
c16pp
md5
a62de124418abe6d77110a68a844b537
sha1
6e2fe34631ce4353a81dabedcc621366402036f9
sha256
f5d08eeff6b1a82eef80ebe115925232bd80d098845c004f14334c3e4a0f3ab5
sha512
bbb06c039b03c33471172c4028aad4f7905691551d7e9d522ce239445d2619ac9d26171067b5d2ae2f4fb89641e00f042ddd8f891939d143bf478e438dc2e42d
ripemd-160
3c48023201f3943b1d1de20fae30239b89ec7150
Diameter
40421498
Circumference
126987881.16389
Area
1.2832600961226E+15
Volume
3.4580863605934E+22
Surface area
5.1330403844906E+15
Circumference
126987881.16389
Perimeter
80842996
Area
408474375141001
Diagonal
28582315.341518
Surface area
2450846250846006
Volume
8.2555730689066E+21
Space diagonal
35006044.127022
Perimeter
60632247
Area
1.7687459283354E+14
Altitude
17503022.063511
Surface area
1.7687459283354E+14
Volume
9.7292861660082E+20
Height
9527438.4471728