20957789 is an odd 8-digits composite number following 20957788
and preceding 20957790 . In scientific notation, it is written as 2.0957789 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 20670624 positive integers (up to 20957789) that are relatively prime to 20957789.
20957789 has 4 divisors, whose sum is 21244956
The reverse of 20957789 is 98775902
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million nine hundred fifty-seven thousand seven hundred eighty-nine
Scientific notation
2.0957789 × 10^7
Engineering notation
2.0957789 × 10^6
Prime Factorization
73 × 287093
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20957789
Product of the distinct prime numbers
The prime factorization of 20957789 is 73 × 287093.
Since it has a total of 2 prime factors.
4 , 6 , 99 , 31 , 308 , 773 , 3089 , 4904 , 92324 , 5634 , 486413 , 746903 , 1422414 , 2251184 , 96486989 , 16629945 , 653428086 , 107950267 , 714299623 , 8478187983
n×2
41915578
n×3
62873367
n×4
83831156
n×5
104788945
n÷2
10478894.5
n÷3
6985929.6666667
n÷3
5239447.25
n÷5
4191557.8
n2
439228919768521
n3
9.2052670232066E+21
n4
1.9292204396102E+29
n5
4.0432194907838E+36
2 √n
4577.9677805769
3 √n
275.70744134658
4 √n
67.660681200952
5 √n
29.125211831453
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20957788
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20957789 can be divided by 4 positive divisors.
The sum of these divisors (counting 20957789) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111111100101001011101
3
Ternary
1110102202200102
4
Quaternary
1033330221131
5
Quinary
20331122124
6
Senary
2025110445
8
Octal
117745135
10
Decimal
20957789
12
Duodecimal
7028425
16
Hexadecimal
13fca5d
20
Vigesimal
6aje99
36
Base36
ch74t
md5
e9717b1f4ced4074a9f2c12177ea351b
sha1
ec31075d500f2579939ca818b62fbf03a84e9462
sha256
871f589e57fb593b4f441fb21815ed34a7f7e3011db1602fdeae801206c72566
sha512
e87c93febfc9797729b52af4b7e1ff5a50f775db0f9b164b150e2efa5b5ca30d7f3266d96425874ba710fa75ba6329cee4a463d4dbee3261d731a51ec3c42bc9
ripemd-160
91fcfc8838eb947736e6957152a5ccab7ef6e2e2
Diameter
41915578
Circumference
131681671.91577
Area
1.379878347589E+15
Volume
3.8558932339251E+22
Surface area
5.5195133903559E+15
Circumference
131681671.91577
Perimeter
83831156
Area
439228919768521
Diagonal
29638789.441154
Surface area
2635373518611126
Volume
9.2052670232066E+21
Space diagonal
36299955.362308
Perimeter
62873367
Area
1.9019170129817E+14
Altitude
18149977.681154
Surface area
1.9019170129817E+14
Volume
1.084851122457E+21
Height
9879596.4803846