20455981 (number)

20455981 is an odd 8-digits composite number following 20455980 and preceding 20455982. In scientific notation, it is written as 2.0455981 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 15224832 positive integers (up to 20455981) that are relatively prime to 20455981.

Interesting facts

Basic properties

Name

Name twenty million four hundred fifty-five thousand nine hundred eighty-one

Notation

Scientific notation 2.0455981 × 10^7
Engineering notation 2.0455981 × 10^6

Prime Factorization of 20455981

Prime Factorization 17 × 13 × 49 × 1889

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20455981
Product of the distinct prime numbers

The prime factorization of 20455981 is 17 × 13 × 49 × 1889. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 73, 98, 874, 147, 306, 8456, 8879, 66748, 448575, 463439, 3487102, 3676435, 37346931, 81963300, 582517816, 877460564, 3963904429, 3947451964

Basic calculations (n = 20455981)

Multiplication

n×y
n×2 40911962
n×3 61367943
n×4 81823924
n×5 102279905

Division

n÷y
n÷2 10227990.5
n÷3 6818660.3333333
n÷3 5113995.25
n÷5 4091196.2

Exponentiation

ny
n2 418447158672361
n3 8.5597471273058E+21
n4 1.7509802460097E+29
n5 3.581801864375E+36

Nth Root

y√n
2√n 4522.8288714034
3√n 273.48915152257
4√n 67.25198042737
5√n 28.984383166178

Divisors of 20455981

1, 13, 17, 49, 221, 637, 833, 1889, 10829, 24557, 32113, 92561, 417469, 1203293, 1573537, 20455981

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20455980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20455981 can be divided by 16 positive divisors. The sum of these divisors (counting 20455981) is 1, the average is 0.0625.

Base conversion 20455981

Base System Value
2 Binary 1001110000010001000101101
3 Ternary 1102111021022221
4 Quaternary 1032002020231
5 Quinary 20214042411
6 Senary 2010235341
8 Octal 116021055
10 Decimal 20455981
12 Duodecimal 6a25b51
16 Hexadecimal 138222d
20 Vigesimal 67gjj1
36 Base36 c6fxp

Cryptographic Hash Functions

md5 220fdb38394440cca396ae61f547e769
sha1 defe1eede2d621cd4b7c75f1e8c5dbafa63ebdc0
sha256 7c15ede24140473c150491572d62f8d842e9d85218db8cb048d1f7f8a8fd48b0
sha512 9655e08640c7a616e38c6db94e6c903791f1c6db1a488a4c47065785300eb306e5d8d66aa42d4179d5e2406569cb8df6861f1f249ac0eec7d406baea7590ad8a
ripemd-160 03fc21e6d8ee59a32f70d7df2c72f0119bd6fd72

20455981 as geometric shapes

Circle

Radius = n
Diameter 40911962
Circumference 128528719.26314
Area 1.3145905196006E+15

Sphere

Radius = n
Volume 3.5854984922307E+22
Surface area 5.2583620784024E+15
Circumference 128528719.26314

Square

Length = n
Perimeter 81823924
Area 418447158672361
Diagonal 28929125.761846

Cube

Length = n
Surface area 2510682952034166
Volume 8.5597471273058E+21
Space diagonal 35430798.410664

Equilateral Triangle

Length = n
Perimeter 61367943
Area 1.8119293477584E+14
Altitude 17715399.205332

Triangular Pyramid

Length = n
Surface area 1.8119293477584E+14
Volume 1.00877587316E+21
Height 9643041.9206154