21031878 (number)

21031878 is an even 8-digits composite number following 21031877 and preceding 21031879. In scientific notation, it is written as 2.1031878 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 6009024 positive integers (up to 21031878) that are relatively prime to 21031878.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand eight hundred seventy-eight

Notation

Scientific notation 2.1031878 × 10^7
Engineering notation 2.1031878 × 10^6

Prime Factorization of 21031878

Prime Factorization 2 × 3 × 49 × 71537

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031878
Product of the distinct prime numbers

The prime factorization of 21031878 is 2 × 3 × 49 × 71537. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 67, 94, 493, 922, 3219, 2759, 59256, 4547, 235939, 609607, 4952838, 8204473, 3033795, 12231238, 928106391, 60168932, 9403411691, 2819025741

Basic calculations (n = 21031878)

Multiplication

n×y
n×2 42063756
n×3 63095634
n×4 84127512
n×5 105159390

Division

n÷y
n÷2 10515939
n÷3 7010626
n÷3 5257969.5
n÷5 4206375.6

Exponentiation

ny
n2 442339892206884
n3 9.3032386474283E+21
n4 1.956645802376E+29
n5 4.1151935804784E+36

Nth Root

y√n
2√n 4586.0525509418
3√n 276.03194862256
4√n 67.720399813807
5√n 29.145775192714

Divisors of 21031878

1, 2, 3, 6, 49, 98, 147, 294, 71537, 143074, 214611, 429222, 3505313, 7010626, 10515939, 21031878

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 -21031877
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 21031878 can be divided by 16 positive divisors. The sum of these divisors (counting 21031878) is 1, the average is 0.0625.

Base conversion 21031878

Base System Value
2 Binary 1010000001110101111000110
3 Ternary 1110120112022110
4 Quaternary 1100032233012
5 Quinary 20341010003
6 Senary 2030441450
8 Octal 120165706
10 Decimal 21031878
12 Duodecimal 7063286
16 Hexadecimal 140ebc6
20 Vigesimal 6b8jdi
36 Base36 cisau

Cryptographic Hash Functions

md5 9a792f140e89eb58d5582e4c184142d6
sha1 594fceca6dc106314bfae5db13d7aee81c81b9f7
sha256 b1e3abebfbe793425bdbfe51093a7dcdd0d4ef5b784b56bae019475629ba7ca7
sha512 47b69f995fcb800f94fe1701b7c0afae4892af91ef5920a30ff39ce45a75ef6c4bee269d42fdc63f51d70290171b19fa879eb01f3d755a27770aad564d052635
ripemd-160 ae82a9e2614ecd291ddd49376a4057d3297352d8

21031878 as geometric shapes

Circle

Radius = n
Diameter 42063756
Circumference 132147186.83199
Area 1.3896517557468E+15

Sphere

Radius = n
Volume 3.8969314919138E+22
Surface area 5.5586070229874E+15
Circumference 132147186.83199

Square

Length = n
Perimeter 84127512
Area 442339892206884
Diagonal 29743567.109776

Cube

Length = n
Surface area 2654039353241304
Volume 9.3032386474283E+21
Space diagonal 36428281.27459

Equilateral Triangle

Length = n
Perimeter 63095634
Area 1.9153879187922E+14
Altitude 18214140.637295

Triangular Pyramid

Length = n
Surface area 1.9153879187922E+14
Volume 1.0963971890989E+21
Height 9914522.3699254