21001881 (number)

21001881 is an odd 8-digits composite number following 21001880 and preceding 21001882. In scientific notation, it is written as 2.1001881 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 13466880 positive integers (up to 21001881) that are relatively prime to 21001881.

Interesting facts

Basic properties

Name

Name twenty-one million one thousand eight hundred eighty-one

Notation

Scientific notation 2.1001881 × 10^7
Engineering notation 2.1001881 × 10^6

Prime Factorization of 21001881

Prime Factorization 3 × 41 × 73 × 2339

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21001881
Product of the distinct prime numbers

The prime factorization of 21001881 is 3 × 41 × 73 × 2339. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 71, 31, 671, 777, 7521, 4374, 5080, 78738, 308347, 931319, 33258, 9303446, 27172391, 7227, 120545727, 887244108, 9333198220, 9957276031

Basic calculations (n = 21001881)

Multiplication

n×y
n×2 42003762
n×3 63005643
n×4 84007524
n×5 105009405

Division

n÷y
n÷2 10500940.5
n÷3 7000627
n÷3 5250470.25
n÷5 4200376.2

Exponentiation

ny
n2 441079005538161
n3 9.2634887859108E+21
n4 1.9455068912653E+29
n5 4.0859304215034E+36

Nth Root

y√n
2√n 4582.780924286
3√n 275.90065475151
4√n 67.696240104499
5√n 29.137456534433

Divisors of 21001881

1, 3, 41, 73, 123, 219, 2339, 2993, 7017, 8979, 95899, 170747, 287697, 512241, 7000627, 21001881

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 -21001880
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 21001881 can be divided by 16 positive divisors. The sum of these divisors (counting 21001881) is 1, the average is 0.0625.

Base conversion 21001881

Base System Value
2 Binary 1010000000111011010011001
3 Ternary 1110112000011110
4 Quaternary 1100013122121
5 Quinary 20334030011
6 Senary 2030050533
8 Octal 120073231
10 Decimal 21001881
12 Duodecimal 7049a49
16 Hexadecimal 1407699
20 Vigesimal 6b54e1
36 Base36 ci55l

Cryptographic Hash Functions

md5 860c0e34af58c7fd855edf10053f0228
sha1 38dbf9d245fd04b2180344dbc48d959f96d9a37a
sha256 6c7e8ca382022cc1abfd8da68f3012a7250c88a26a3f3ccd4f48bb0f418a44a7
sha512 937caf9753272e91397da26db122846bc4d43f8c9ac3118e694c14e4f5c049cfcde0e706cac36a59ed4eeb7c0c88cfe2c2d146dab2bd1762bb28620770b67a19
ripemd-160 28f1aa32a95b4a8d0b783c09e6b6f28de7e267dc

21001881 as geometric shapes

Circle

Radius = n
Diameter 42003762
Circumference 131958710.12233
Area 1.3856905634514E+15

Sphere

Radius = n
Volume 3.8802811088572E+22
Surface area 5.5427622538055E+15
Circumference 131958710.12233

Square

Length = n
Perimeter 84007524
Area 441079005538161
Diagonal 29701144.945546

Cube

Length = n
Surface area 2646474033228966
Volume 9.2634887859108E+21
Space diagonal 36376324.946515

Equilateral Triangle

Length = n
Perimeter 63005643
Area 1.9099281193601E+14
Altitude 18188162.473258

Triangular Pyramid

Length = n
Surface area 1.9099281193601E+14
Volume 1.0917126229938E+21
Height 9900381.6485153