20787438 (number)

20787438 is an even 8-digits composite number following 20787437 and preceding 20787439. In scientific notation, it is written as 2.0787438 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 5939256 positive integers (up to 20787438) that are relatively prime to 20787438.

Interesting facts

Basic properties

Name

Name twenty million seven hundred eighty-seven thousand four hundred thirty-eight

Notation

Scientific notation 2.0787438 × 10^7
Engineering notation 2.0787438 × 10^6

Prime Factorization of 20787438

Prime Factorization 2 × 3 × 7 × 494939

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20787438
Product of the distinct prime numbers

The prime factorization of 20787438 is 2 × 3 × 7 × 494939. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 4, 3, 81, 191, 970, 2664, 1817, 2523, 27623, 323728, 462982, 4319088, 9126808, 62517262, 52915150, 877710080, 390968594, 7465963234, 2957255511

Basic calculations (n = 20787438)

Multiplication

n×y
n×2 41574876
n×3 62362314
n×4 83149752
n×5 103937190

Division

n÷y
n÷2 10393719
n÷3 6929146
n÷3 5196859.5
n÷5 4157487.6

Exponentiation

ny
n2 432117578603844
n3 8.9826173739375E+21
n4 1.8672560173845E+29
n5 3.8815468691507E+36

Nth Root

y√n
2√n 4559.3242920415
3√n 274.95839811451
4√n 67.522768693542
5√n 29.077709496942

Divisors of 20787438

1, 2, 3, 6, 7, 14, 21, 42, 494939, 989878, 1484817, 2969634, 3464573, 6929146, 10393719, 20787438

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 -20787437
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 20787438 can be divided by 16 positive divisors. The sum of these divisors (counting 20787438) is 1, the average is 0.0625.

Base conversion 20787438

Base System Value
2 Binary 1001111010011000011101110
3 Ternary 1110010010000010
4 Quaternary 1033103003232
5 Quinary 20310144223
6 Senary 2021314050
8 Octal 117230356
10 Decimal 20787438
12 Duodecimal 6b65926
16 Hexadecimal 13d30ee
20 Vigesimal 69i8bi
36 Base36 cdjou

Cryptographic Hash Functions

md5 e136fa5fee5d72db8078a93bf49617e8
sha1 edbbc4abbb30cc0323f2c11fbba5201c15b86130
sha256 e0ba2f98741f1ff31fb3e5820bec3e3d95f4adc4bdd1171e25277cebe9fd512d
sha512 835a785d4f8c23e4c2f62dc14e520be7266b1ca56ef9914a95e06e7e71e8731f93c4a46c0a8a5c507ca0a23d88c4dd0a508fedd4aa7020206c3c8621d5fd880e
ripemd-160 8b8acc96ab841a9e3a882ff2e0ad4eae577b0fbc

20787438 as geometric shapes

Circle

Radius = n
Diameter 41574876
Circumference 130611325.01551
Area 1.3575374104288E+15

Sphere

Radius = n
Volume 3.7626299669294E+22
Surface area 5.4301496417154E+15
Circumference 130611325.01551

Square

Length = n
Perimeter 83149752
Area 432117578603844
Diagonal 29397876.74659

Cube

Length = n
Surface area 2592705471623064
Volume 8.9826173739375E+21
Space diagonal 36004898.775188

Equilateral Triangle

Length = n
Perimeter 62362314
Area 1.8711240024637E+14
Altitude 18002449.387594

Triangular Pyramid

Length = n
Surface area 1.8711240024637E+14
Volume 1.0586116096526E+21
Height 9799292.2488633