20842457 is an odd 8-digits composite number following 20842456
and preceding 20842458 . In scientific notation, it is written as 2.0842457 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20827620 positive integers (up to 20842457) that are relatively prime to 20842457.
20842457 has 4 divisors, whose sum is 20857296
The reverse of 20842457 is 75424802
Previous prime number is 1571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred forty-two thousand four hundred fifty-seven
Scientific notation
2.0842457 × 10^7
Engineering notation
2.0842457 × 10^6
Prime Factorization
1571 × 13267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20842457
Product of the distinct prime numbers
The prime factorization of 20842457 is 1571 × 13267.
Since it has a total of 2 prime factors.
1 , 8 , 25 , 2 , 740 , 11 , 4553 , 4337 , 35440 , 61284 , 434341 , 366366 , 7596637 , 6635133 , 13762594 , 9013099 , 777888146 , 91529873 , 4529232812 , 5988533389
n×2
41684914
n×3
62527371
n×4
83369828
n×5
104212285
n÷2
10421228.5
n÷3
6947485.6666667
n÷3
5210614.25
n÷5
4168491.4
n2
434408013796849
n3
9.0541303480162E+21
n4
1.8871032245092E+29
n5
3.9331867811395E+36
2 √n
4565.3539840849
3 √n
275.20076579047
4 √n
67.567403265812
5 √n
29.093085470181
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
-20842456
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 20842457 can be divided by 4 positive divisors.
The sum of these divisors (counting 20842457) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100000011111011001
3
Ternary
1110012220110212
4
Quaternary
1033200133121
5
Quinary
20313424312
6
Senary
2022420505
8
Octal
117403731
10
Decimal
20842457
12
Duodecimal
6b91735
16
Hexadecimal
13e07d9
20
Vigesimal
6a562h
36
Base36
ceq55
md5
794ec83d4ce4df9a1d88db1b58fa3be3
sha1
1fa93a58b89f0562ef773afdeb0aee45d765649e
sha256
f7383dc486fa7dcf87a37323cc871d51608fe8241c1b71218c991c40d2daef33
sha512
b6bcf69bb5a378eb214f218a6fa299b7d238ba12f0ccee8d979fa877a23a1322bf632790a3e5955f1908205a5faad78369f63da6a0fb8d3bc1632d188a4582bc
ripemd-160
c73ca4f0b098bbd6b4028f59c269f2feb4872201
Diameter
41684914
Circumference
130957019.58792
Area
1.3647330248047E+15
Volume
3.792585251463E+22
Surface area
5.4589320992189E+15
Circumference
130957019.58792
Perimeter
83369828
Area
434408013796849
Diagonal
29475685.362578
Surface area
2606448082781094
Volume
9.0541303480162E+21
Space diagonal
36100194.47857
Perimeter
62527371
Area
1.8810418777781E+14
Altitude
18050097.239285
Surface area
1.8810418777781E+14
Volume
1.0670394944715E+21
Height
9825228.4541927