21861261 (number)

21861261 is an odd 8-digits composite number following 21861260 and preceding 21861262. In scientific notation, it is written as 2.1861261 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 14574168 positive integers (up to 21861261) that are relatively prime to 21861261.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand two hundred sixty-one

Notation

Scientific notation 2.1861261 × 10^7
Engineering notation 2.1861261 × 10^6

Prime Factorization of 21861261

Prime Factorization 9 × 2429029

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21861261
Product of the distinct prime numbers

The prime factorization of 21861261 is 9 × 2429029. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 9, 93, 77, 296, 839, 8772, 7165, 20696, 15880, 109597, 470311, 5962730, 9946029, 86598755, 85582514, 424571927, 405967160, 5575576270, 6933922450

Basic calculations (n = 21861261)

Multiplication

n×y
n×2 43722522
n×3 65583783
n×4 87445044
n×5 109306305

Division

n÷y
n÷2 10930630.5
n÷3 7287087
n÷3 5465315.25
n÷5 4372252.2

Exponentiation

ny
n2 477914732510121
n3 1.0447818703149E+22
n4 2.2840249155022E+29
n5 4.9931664808297E+36

Nth Root

y√n
2√n 4675.6027418933
3√n 279.61367214422
4√n 68.378379199081
5√n 29.3721029571

Divisors of 21861261

1, 9, 2429029, 21861261

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21861260
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21861261 can be divided by 4 positive divisors. The sum of these divisors (counting 21861261) is 1, the average is 0.25.

Base conversion 21861261

Base System Value
2 Binary 1010011011001001110001101
3 Ternary 1112010200000100
4 Quaternary 1103121032031
5 Quinary 21044030021
6 Senary 2100321313
8 Octal 123311615
10 Decimal 21861261
12 Duodecimal 73a3239
16 Hexadecimal 14d938d
20 Vigesimal 6gcd31
36 Base36 d0k99

Cryptographic Hash Functions

md5 a384d23a9622b6379e73ea7f257a6a32
sha1 7aa63477b1b2320e8130ed6ecbee223a59e3b38c
sha256 fe72e1c9a80b6b4f81ce012ed4d058a22c4ca03d8a9922020ddcf006bc7070f1
sha512 5d30907fe12ecf1a10fc3e9870d4acaaf7696e5429739793e5030c9cfddc4ae8d1d66582f6845ec76e7e3f3031be2e11a16a50c40e82fe585cbf3e9286ba9c0c
ripemd-160 c61fccae83d2e405d6acf7ed6b9b2ca93d04e532

21861261 as geometric shapes

Circle

Radius = n
Diameter 43722522
Circumference 137358353.91162
Area 1.5014134126961E+15

Sphere

Radius = n
Volume 4.3763720645134E+22
Surface area 6.0056536507845E+15
Circumference 137358353.91162

Square

Length = n
Perimeter 87445044
Area 477914732510121
Diagonal 30916491.796778

Cube

Length = n
Surface area 2867488395060726
Volume 1.0447818703149E+22
Space diagonal 37864814.769524

Equilateral Triangle

Length = n
Perimeter 65583783
Area 2.069431495983E+14
Altitude 18932407.384762

Triangular Pyramid

Length = n
Surface area 2.069431495983E+14
Volume 1.2312872422674E+21
Height 10305497.265593