21087961 (number)

21087961 is an odd 8-digits prime number following 21087960 and preceding 21087962. In scientific notation, it is written as 2.1087961 × 10^7. The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors. There are 21087960 positive integers (up to 21087961) that are relatively prime to 21087961.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1087961 × 10^7
Engineering notation 2.1087961 × 10^6

Prime Factorization of 21087961

Prime Factorization 21087961

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21087961
Product of the distinct prime numbers

The prime factorization of 21087961 is 21087961. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 4, 23, 23, 619, 780, 8182, 4805, 8427, 2986, 848766, 536075, 8244179, 9445624, 35835033, 65032237, 696028462, 269187197, 9295675207, 2282250876

Basic calculations (n = 21087961)

Multiplication

n×y
n×2 42175922
n×3 63263883
n×4 84351844
n×5 105439805

Division

n÷y
n÷2 10543980.5
n÷3 7029320.3333333
n÷3 5271990.25
n÷5 4217592.2

Exponentiation

ny
n2 444702099137521
n3 9.3778605232302E+21
n4 1.9775995697732E+29
n5 4.1703542600994E+36

Nth Root

y√n
2√n 4592.1629979782
3√n 276.27708380883
4√n 67.765500057022
5√n 29.161302496573

Divisors of 21087961

1, 21087961

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21087962
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10543981
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4592.1631068593
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999051592
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087961 can be divided by 2 positive divisors. The sum of these divisors (counting 21087961) is 21087962, the average is 10543981.

Base conversion 21087961

Base System Value
2 Binary 1010000011100011011011001
3 Ternary 1110200101020121
4 Quaternary 1100130123121
5 Quinary 20344303321
6 Senary 2031553241
8 Octal 120343331
10 Decimal 21087961
12 Duodecimal 708b821
16 Hexadecimal 141c6d9
20 Vigesimal 6bfji1
36 Base36 cjzkp

Cryptographic Hash Functions

md5 a3a6ff1c264644e6d14271dd969dfc34
sha1 f0329a5d82e4411d06082e54d3a60ab8e96899b7
sha256 ae4c46f770e91001c6d61a3a98cfcd52fb7910ee6c3c044a3e5fa0c7ddc84bb2
sha512 40dd53e9f40a7e67a922779cacb0185ed0e0564557a7f97fe7c4e76ba18df5bc9ef086492f84699d66f3ce9cbb481e54821f5fe345bc9d16afa7a9dbe7f656a4
ripemd-160 558fddc927c6176f8c767a800ee0fb8da4630a63

21087961 as geometric shapes

Circle

Radius = n
Diameter 42175922
Circumference 132499566.71358
Area 1.3970728476864E+15

Sphere

Radius = n
Volume 3.928189030156E+22
Surface area 5.5882913907456E+15
Circumference 132499566.71358

Square

Length = n
Perimeter 84351844
Area 444702099137521
Diagonal 29822880.448995

Cube

Length = n
Surface area 2668212594825126
Volume 9.3778605232302E+21
Space diagonal 36525419.880031

Equilateral Triangle

Length = n
Perimeter 63263883
Area 1.9256165748468E+14
Altitude 18262709.940015

Triangular Pyramid

Length = n
Surface area 1.9256165748468E+14
Volume 1.1051914614996E+21
Height 9940960.149665