20081987 (number)

20081987 is an odd 8-digits prime number following 20081986 and preceding 20081988. In scientific notation, it is written as 2.0081987 × 10^7. The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors. There are 20081986 positive integers (up to 20081987) that are relatively prime to 20081987.

Interesting facts

Basic properties

Name

Name twenty million eighty-one thousand nine hundred eighty-seven

Notation

Scientific notation 2.0081987 × 10^7
Engineering notation 2.0081987 × 10^6

Prime Factorization of 20081987

Prime Factorization 20081987

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 20081987
Product of the distinct prime numbers

The prime factorization of 20081987 is 20081987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 9, 76, 84, 56, 48, 9898, 6948, 20389, 58123, 784721, 510802, 2695029, 8472492, 67154482, 35457169, 467058276, 510038626, 5533672596, 8617825479

Basic calculations (n = 20081987)

Multiplication

n×y
n×2 40163974
n×3 60245961
n×4 80327948
n×5 100409935

Division

n÷y
n÷2 10040993.5
n÷3 6693995.6666667
n÷3 5020496.75
n÷5 4016397.4

Exponentiation

ny
n2 403286201868169
n3 8.0987882631959E+21
n4 1.6263976061725E+29
n5 3.2661295583988E+36

Nth Root

y√n
2√n 4481.2930053724
3√n 271.81216757368
4√n 66.942460407222
5√n 28.877615950164

Divisors of 20081987

1, 20081987

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 20081988
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10040994
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4481.2931169474
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999004083
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20081987 can be divided by 2 positive divisors. The sum of these divisors (counting 20081987) is 20081988, the average is 10040994.

Base conversion 20081987

Base System Value
2 Binary 1001100100110110101000011
3 Ternary 1101210021022022
4 Quaternary 1030212311003
5 Quinary 20120110422
6 Senary 1554232055
8 Octal 114466503
10 Decimal 20081987
12 Duodecimal 688562b
16 Hexadecimal 1326d43
20 Vigesimal 65a4j7
36 Base36 byfcz

Cryptographic Hash Functions

md5 42c491d1862442c4df4f667ddb415c7c
sha1 fd08c4107ec71014fd07fe766f775e94831aae30
sha256 218000199c22d3ad07ba166658951268a8c727eb8ee5eb0d5997ce7f5bb6c71a
sha512 a900da1fa276b1cb4b4dbdddc6e6078f577a76b06c55b8c89340c559311cbb6e1f3ae925f1292bd7f2279d9f5a8e635780f8169a6d74f45baedac0b09ba9ca82
ripemd-160 0a4abf1524350a4d84d25fc5a4fa24b45606d07b

20081987 as geometric shapes

Circle

Radius = n
Diameter 40163974
Circumference 126178845.65737
Area 1.2669609690832E+15

Sphere

Radius = n
Volume 3.3924124947514E+22
Surface area 5.0678438763327E+15
Circumference 126178845.65737

Square

Length = n
Perimeter 80327948
Area 403286201868169
Diagonal 28400218.3748

Cube

Length = n
Surface area 2419717211209014
Volume 8.0987882631959E+21
Space diagonal 34783021.800938

Equilateral Triangle

Length = n
Perimeter 60245961
Area 1.7462804790679E+14
Altitude 17391510.900469

Triangular Pyramid

Length = n
Surface area 1.7462804790679E+14
Volume 9.5445135004998E+20
Height 9466739.4582667