20451840 (number)

20451840 is an even 8-digits composite number following 20451839 and preceding 20451841. In scientific notation, it is written as 2.0451840 × 10^7. The sum of its digits is 24. It has a total of 11 prime factors and 40 positive divisors. There are 5451776 positive integers (up to 20451840) that are relatively prime to 20451840.

Interesting facts

Basic properties

Name

Name twenty million four hundred fifty-one thousand eight hundred forty

Notation

Scientific notation 2.0451840 × 10^7
Engineering notation 2.0451840 × 10^6

Prime Factorization of 20451840

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 15 × 2663

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 11
Total number of prime factors
rad Radical 79890
Product of the distinct prime numbers

The prime factorization of 20451840 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 15 × 2663. Since it has a total of 11 prime factors.

Most popular turbo-numbers

8, 7, 44, 31, 419, 157, 2812, 1645, 30588, 23721, 513658, 132988, 5985294, 6666457, 46356202, 93393932, 436322098, 373634582, 9478359419, 349848597

Basic calculations (n = 20451840)

Multiplication

n×y
n×2 40903680
n×3 61355520
n×4 81807360
n×5 102259200

Division

n÷y
n÷2 10225920
n÷3 6817280
n÷3 5112960
n÷5 4090368

Exponentiation

ny
n2 418277759385600
n3 8.5545498105128E+21
n4 1.7495628399664E+29
n5 3.5781779272938E+36

Nth Root

y√n
2√n 4522.3710595218
3√n 273.47069571405
4√n 67.248576635656
5√n 28.983209582269

Divisors of 20451840

1, 2, 4, 8, 15, 16, 30, 32, 60, 64, 120, 128, 240, 256, 480, 512, 960, 1920, 2663, 3840, 5326, 7680, 10652, 21304, 39945, 42608, 79890, 85216, 159780, 170432, 319560, 340864, 639120, 681728, 1278240, 1363456, 2556480, 5112960, 10225920, 20451840

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20451839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20451840 can be divided by 40 positive divisors. The sum of these divisors (counting 20451840) is 1, the average is 0.025.

Base conversion 20451840

Base System Value
2 Binary 1001110000001001000000000
3 Ternary 1102111001122120
4 Quaternary 1032001020000
5 Quinary 20213424330
6 Senary 2010204240
8 Octal 116011000
10 Decimal 20451840
12 Duodecimal 6a23680
16 Hexadecimal 1381200
20 Vigesimal 67g9c0
36 Base36 c6cqo

Cryptographic Hash Functions

md5 890579c577c35f3bb0f47fed07098644
sha1 f5115b8597b4d1beaaa8b7e2582b6b42148a5701
sha256 3780ff02c96137b9aab9f4dc0cc6d2ed48d85330b5f8fa9caa85d7943f9f362a
sha512 47a058eb7f46c0a180b2d7b1d2adfeb3700ce1a18e1bcb93ff4ac3be71ab2699d35b89cf6c267a5b656385984262806e2727fd1c4f7606317623279448d1c224
ripemd-160 4b906d5cf97d3b69aae8d7c235507080826368d8

20451840 as geometric shapes

Circle

Radius = n
Diameter 40903680
Circumference 128502700.59279
Area 1.3140583360458E+15

Sphere

Radius = n
Volume 3.5833214452633E+22
Surface area 5.2562333441832E+15
Circumference 128502700.59279

Square

Length = n
Perimeter 81807360
Area 418277759385600
Diagonal 28923269.503485

Cube

Length = n
Surface area 2509666556313600
Volume 8.5545498105128E+21
Space diagonal 35423625.988269

Equilateral Triangle

Length = n
Perimeter 61355520
Area 1.8111958273298E+14
Altitude 17711812.994135

Triangular Pyramid

Length = n
Surface area 1.8111958273298E+14
Volume 1.0081633635019E+21
Height 9641089.8344949