20887988 (number)

20887988 is an even 8-digits composite number following 20887987 and preceding 20887989. In scientific notation, it is written as 2.0887988 × 10^7. The sum of its digits is 50. It has a total of 5 prime factors and 24 positive divisors. There are 9379920 positive integers (up to 20887988) that are relatively prime to 20887988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0887988 × 10^7
Engineering notation 2.0887988 × 10^6

Prime Factorization of 20887988

Prime Factorization 2 × 2 × 121 × 103 × 419

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10443994
Product of the distinct prime numbers

The prime factorization of 20887988 is 2 × 2 × 121 × 103 × 419. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 84, 91, 783, 950, 5153, 6221, 57286, 33309, 40756, 63009, 1639986, 4452008, 94820921, 53226795, 538248653, 799854163, 8860128015, 9244502633

Basic calculations (n = 20887988)

Multiplication

n×y
n×2 41775976
n×3 62663964
n×4 83551952
n×5 104439940

Division

n÷y
n÷2 10443994
n÷3 6962662.6666667
n÷3 5221997
n÷5 4177597.6

Exponentiation

ny
n2 436308042688144
n3 9.1135971599734E+21
n4 1.9036470811436E+29
n5 3.9763357387162E+36

Nth Root

y√n
2√n 4570.3378430921
3√n 275.40101494127
4√n 67.604273852266
5√n 29.105785328981

Divisors of 20887988

1, 2, 4, 103, 121, 206, 242, 412, 419, 484, 838, 1676, 12463, 24926, 43157, 49852, 50699, 86314, 101398, 172628, 202796, 5221997, 10443994, 20887988

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20887987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20887988 can be divided by 24 positive divisors. The sum of these divisors (counting 20887988) is 1, the average is 0.041666666666667.

Base conversion 20887988

Base System Value
2 Binary 1001111101011100110110100
3 Ternary 1110022012221012
4 Quaternary 1033223212310
5 Quinary 20321403423
6 Senary 2023411352
8 Octal 117534664
10 Decimal 20887988
12 Duodecimal 6bb3b58
16 Hexadecimal 13eb9b4
20 Vigesimal 6aajj8
36 Base36 cfp9w

Cryptographic Hash Functions

md5 47d98fed013e3aa789f1a790696e1812
sha1 5f435ce650da12476c3a372ce876cc19c0995183
sha256 9d1566f3bc5a638875666db3ed1a7fe422f1d07300229f5ff28840d32a9e3d05
sha512 2a3d373a73f440a4c14db088bcf75b50e9ae2da33340fc70f76c1a4feb382e0440276406c63ab646ab159669948bb728f89b6c7a78454d803c62eb862bae184c
ripemd-160 695cb920238aea0abd90a189b607da799d84fa68

20887988 as geometric shapes

Circle

Radius = n
Diameter 41775976
Circumference 131243099.29814
Area 1.3707021416112E+15

Sphere

Radius = n
Volume 3.8174946514066E+22
Surface area 5.4828085664449E+15
Circumference 131243099.29814

Square

Length = n
Perimeter 83551952
Area 436308042688144
Diagonal 29540075.920286

Cube

Length = n
Surface area 2617848256128864
Volume 9.1135971599734E+21
Space diagonal 36179056.483889

Equilateral Triangle

Length = n
Perimeter 62663964
Area 1.889269244217E+14
Altitude 18089528.241945

Triangular Pyramid

Length = n
Surface area 1.889269244217E+14
Volume 1.0740477254699E+21
Height 9846691.9734288