20205840 (number)

20205840 is an even 8-digits composite number following 20205839 and preceding 20205841. In scientific notation, it is written as 2.0205840 × 10^7. The sum of its digits is 21. It has a total of 6 prime factors and 20 positive divisors. There are 5388160 positive integers (up to 20205840) that are relatively prime to 20205840.

Interesting facts

Basic properties

Name

Name twenty million two hundred five thousand eight hundred forty

Notation

Scientific notation 2.0205840 × 10^7
Engineering notation 2.0205840 × 10^6

Prime Factorization of 20205840

Prime Factorization 2 × 2 × 2 × 2 × 15 × 84191

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2525730
Product of the distinct prime numbers

The prime factorization of 20205840 is 2 × 2 × 2 × 2 × 15 × 84191. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 10, 40, 2, 593, 715, 6894, 9050, 54251, 61871, 112007, 956237, 9596188, 7127055, 91787763, 42759651, 927469588, 598254077, 2832838867, 4706657742

Basic calculations (n = 20205840)

Multiplication

n×y
n×2 40411680
n×3 60617520
n×4 80823360
n×5 101029200

Division

n÷y
n÷2 10102920
n÷3 6735280
n÷3 5051460
n÷5 4041168

Exponentiation

ny
n2 408275970105600
n3 8.2495589277985E+21
n4 1.6668926776567E+29
n5 3.3680966741903E+36

Nth Root

y√n
2√n 4495.0906553706
3√n 272.3698112788
4√n 67.04543724498
5√n 28.913148177582

Divisors of 20205840

1, 2, 4, 8, 15, 16, 30, 60, 120, 240, 84191, 168382, 336764, 673528, 1262865, 1347056, 2525730, 5051460, 10102920, 20205840

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20205839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20205840 can be divided by 20 positive divisors. The sum of these divisors (counting 20205840) is 1, the average is 0.05.

Base conversion 20205840

Base System Value
2 Binary 1001101000101000100010000
3 Ternary 1102000120012110
4 Quaternary 1031011010100
5 Quinary 20133041330
6 Senary 2001025320
8 Octal 115050420
10 Decimal 20205840
12 Duodecimal 6925240
16 Hexadecimal 1345110
20 Vigesimal 665ec0
36 Base36 c12xc

Cryptographic Hash Functions

md5 b00d1d5887883ad7224f6d72ed2244d6
sha1 1ce263159d29d1ce1b8ab71a877d84c77b2fda8a
sha256 1680b52cdb1ae6f295c8a48744bbed30c9a348f39e28a3b3b652e3c21311a7d4
sha512 e4cf35a877b56443879e4818dcb2f3b95c487b4b4bc01dec878f83f4631bfbe0a94ebebbeb49eae497abc4ef545c249c570d81f7551735426f9e217bf4cc9de1
ripemd-160 262b61673e9b462efbdd22af6bfb6f92a02b135d

20205840 as geometric shapes

Circle

Radius = n
Diameter 40411680
Circumference 126957037.00722
Area 1.282636788321E+15

Sphere

Radius = n
Volume 3.4555671630571E+22
Surface area 5.130547153284E+15
Circumference 126957037.00722

Square

Length = n
Perimeter 80823360
Area 408275970105600
Diagonal 28575372.967141

Cube

Length = n
Surface area 2449655820633600
Volume 8.2495589277985E+21
Space diagonal 34997541.489608

Equilateral Triangle

Length = n
Perimeter 60617520
Area 1.7678868093309E+14
Altitude 17498770.744804

Triangular Pyramid

Length = n
Surface area 1.7678868093309E+14
Volume 9.7221984327406E+20
Height 9525124.3223803