20797978 (number)

20797978 is an even 8-digits composite number following 20797977 and preceding 20797979. In scientific notation, it is written as 2.0797978 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 10392156 positive integers (up to 20797978) that are relatively prime to 20797978.

Interesting facts

Basic properties

Name

Name twenty million seven hundred ninety-seven thousand nine hundred seventy-eight

Notation

Scientific notation 2.0797978 × 10^7
Engineering notation 2.0797978 × 10^6

Prime Factorization of 20797978

Prime Factorization 2 × 2287 × 4547

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20797978
Product of the distinct prime numbers

The prime factorization of 20797978 is 2 × 2287 × 4547. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20797978)

Multiplication

n×y
n×2 41595956
n×3 62393934
n×4 83191912
n×5 103989890

Division

n÷y
n÷2 10398989
n÷3 6932659.3333333
n÷3 5199494.5
n÷5 4159595.6

Exponentiation

ny
n2 432555888888484
n3 8.9962878608731E+21
n4 1.8710459701211E+29
n5 3.8913972923567E+36

Nth Root

y√n
2√n 4560.4800185945
3√n 275.00486162204
4√n 67.531326201953
5√n 29.080657593947

Divisors of 20797978

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 -20797977
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 20797978 can be divided by 8 positive divisors. The sum of these divisors (counting 20797978) is 1, the average is 0.125.

Base conversion 20797978

Base System Value
2 Binary 1001111010101101000011010
3 Ternary 1110010122110111
4 Quaternary 1033111220122
5 Quinary 20311013403
6 Senary 2021434534
8 Octal 117255032
10 Decimal 20797978
12 Duodecimal 6b6ba4a
16 Hexadecimal 13d5a1a
20 Vigesimal 69jeii
36 Base36 cdrtm

Cryptographic Hash Functions

md5 05de17136c34e3296793725aba5a08fb
sha1 8cb71b3a0a4c93a4a48d97f544df3dfa5d7bfef5
sha256 3f7f1a90d48a16944a32ab96aaa38b402422c292f848c2dfa9418e48212ce787
sha512 f56d83e4d03fc22b1ce9fbeaad4d069122dcc6e74b30cbb61cca6b4033e5a05a5d6e608933a11d90bea30d89210bdb4c4afbd9791749e9e61aeaf7d25d5624e3
ripemd-160 cc0595e4bfe4c7f098fb47f0a00d3f2fe7cd3360

20797978 as geometric shapes

Circle

Radius = n
Diameter 41595956
Circumference 130677549.78864
Area 1.3589144027991E+15

Sphere

Radius = n
Volume 3.7683562471064E+22
Surface area 5.4356576111963E+15
Circumference 130677549.78864

Square

Length = n
Perimeter 83191912
Area 432555888888484
Diagonal 29412782.557537

Cube

Length = n
Surface area 2595335333330904
Volume 8.9962878608731E+21
Space diagonal 36023154.5907

Equilateral Triangle

Length = n
Perimeter 62393934
Area 1.8730219416699E+14
Altitude 18011577.29535

Triangular Pyramid

Length = n
Surface area 1.8730219416699E+14
Volume 1.0602226919883E+21
Height 9804260.8525124