21836981 (number)

21836981 is an odd 8-digits prime number following 21836980 and preceding 21836982. In scientific notation, it is written as 2.1836981 × 10^7. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 21836980 positive integers (up to 21836981) that are relatively prime to 21836981.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred thirty-six thousand nine hundred eighty-one

Notation

Scientific notation 2.1836981 × 10^7
Engineering notation 2.1836981 × 10^6

Prime Factorization of 21836981

Prime Factorization 21836981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21836981
Product of the distinct prime numbers

The prime factorization of 21836981 is 21836981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 1, 54, 33, 266, 213, 7891, 9331, 43663, 91920, 917447, 655560, 7950767, 2874057, 99024037, 55002698, 349978201, 127258555, 1954389163, 7546232986

Basic calculations (n = 21836981)

Multiplication

n×y
n×2 43673962
n×3 65510943
n×4 87347924
n×5 109184905

Division

n÷y
n÷2 10918490.5
n÷3 7278993.6666667
n÷3 5459245.25
n÷5 4367396.2

Exponentiation

ny
n2 476853739194361
n3 1.0413046042566E+22
n4 2.2738948858364E+29
n5 4.9654999418007E+36

Nth Root

y√n
2√n 4673.0055638743
3√n 279.51011704893
4√n 68.359385338623
5√n 29.36557568775

Divisors of 21836981

1, 21836981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21836982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10918491
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4673.0056708718
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999084123
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21836981 can be divided by 2 positive divisors. The sum of these divisors (counting 21836981) is 21836982, the average is 10918491.

Base conversion 21836981

Base System Value
2 Binary 1010011010011010010110101
3 Ternary 1112002102201002
4 Quaternary 1103103102311
5 Quinary 21042240411
6 Senary 2100013045
8 Octal 123232265
10 Decimal 21836981
12 Duodecimal 7391185
16 Hexadecimal 14d34b5
20 Vigesimal 6g9c91
36 Base36 d01it

Cryptographic Hash Functions

md5 d07b00bbe32c4bf7af9233574511e8cc
sha1 0629a49492bd6f98843272700a5ffebb5303dab5
sha256 fdbe066fa25ade8626c2baba3903332a935872be705363b79ddf4b36861b6957
sha512 64de910bd13802e45c01d6d166fe2be6578660d214d80d60cfcf6f3e3d06e38e54c956e2b32c3c47eabb1c63bf9ffb28a8722fadc508a87fa31b3f037cd9cc4f
ripemd-160 3d6ab31a8208cfdb06b3e60a5d2f4c753c9d0460

21836981 as geometric shapes

Circle

Radius = n
Diameter 43673962
Circumference 137205798.17236
Area 1.4980802038898E+15

Sphere

Radius = n
Volume 4.3618065265091E+22
Surface area 5.9923208155593E+15
Circumference 137205798.17236

Square

Length = n
Perimeter 87347924
Area 476853739194361
Diagonal 30882154.691484

Cube

Length = n
Surface area 2861122435166166
Volume 1.0413046042566E+22
Space diagonal 37822760.575916

Equilateral Triangle

Length = n
Perimeter 65510943
Area 2.0648372601596E+14
Altitude 18911380.287958

Triangular Pyramid

Length = n
Surface area 2.0648372601596E+14
Volume 1.2271892449177E+21
Height 10294051.563828