20978079 is an odd 8-digits composite number following 20978078
and preceding 20978080 . In scientific notation, it is written as 2.0978079 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 13985384 positive integers (up to 20978079) that are relatively prime to 20978079.
20978079 has 4 divisors, whose sum is 27970776
The reverse of 20978079 is 97087902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred seventy-eight thousand seventy-nine
Scientific notation
2.0978079 × 10^7
Engineering notation
2.0978079 × 10^6
Prime Factorization
3 × 6992693
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20978079
Product of the distinct prime numbers
The prime factorization of 20978079 is 3 × 6992693.
Since it has a total of 2 prime factors.
3 , 10 , 99 , 82 , 562 , 441 , 6986 , 1456 , 76489 , 38091 , 725047 , 793213 , 470622 , 7017808 , 10282010 , 39365582 , 908511128 , 367312985 , 60518026 , 2564588210
n×2
41956158
n×3
62934237
n×4
83912316
n×5
104890395
n÷2
10489039.5
n÷3
6992693
n÷3
5244519.75
n÷5
4195615.8
n2
440079798530241
n3
9.2320287798715E+21
n4
1.9367022907442E+29
n5
4.0628293654712E+36
2 √n
4580.1832932755
3 √n
275.79638679259
4 √n
67.677051452287
5 √n
29.130849084816
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
-20978078
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 20978079 can be divided by 4 positive divisors.
The sum of these divisors (counting 20978079) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000001100110011111
3
Ternary
1110110210111220
4
Quaternary
1100001212133
5
Quinary
20332244304
6
Senary
2025344423
8
Octal
120014637
10
Decimal
20978079
12
Duodecimal
7038113
16
Hexadecimal
140199f
20
Vigesimal
6b253j
36
Base36
chmsf
md5
8b01c19455d57efc0f514710e7fc5b8c
sha1
3abbe544fc2e236a7a08c4e861855c6e7fad8e79
sha256
87193bf776d3884fafec9e0805c727b35420eeb4320e4cc55ac27dc3e0f01317
sha512
83aa976504520fcdddad772a57eb84ce5efa901e61bbb44e42b1495dc8dc66e8c8492918c339ddb273cdbd1df8a21cfd447cc79a0fc818c07514e2028d01b898
ripemd-160
57cd0b6110cb2ac4d140ab5d9738658ccf13e37a
Diameter
41956158
Circumference
131809157.74565
Area
1.3825514620559E+15
Volume
3.8671031723432E+22
Surface area
5.5302058482235E+15
Circumference
131809157.74565
Perimeter
83912316
Area
440079798530241
Diagonal
29667483.834334
Surface area
2640478791181446
Volume
9.2320287798715E+21
Space diagonal
36335098.673194
Perimeter
62934237
Area
1.9056014260976E+14
Altitude
18167549.336597
Surface area
1.9056014260976E+14
Volume
1.0880050257261E+21
Height
9889161.2781114