21861047 (number)

21861047 is an odd 8-digits composite number following 21861046 and preceding 21861048. In scientific notation, it is written as 2.1861047 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 20179416 positive integers (up to 21861047) that are relatively prime to 21861047.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand forty-seven

Notation

Scientific notation 2.1861047 × 10^7
Engineering notation 2.1861047 × 10^6

Prime Factorization of 21861047

Prime Factorization 13 × 1681619

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21861047
Product of the distinct prime numbers

The prime factorization of 21861047 is 13 × 1681619. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21861047)

Multiplication

n×y
n×2 43722094
n×3 65583141
n×4 87444188
n×5 109305235

Division

n÷y
n÷2 10930523.5
n÷3 7287015.6666667
n÷3 5465261.75
n÷5 4372209.4

Exponentiation

ny
n2 477905375936209
n3 1.0447511884894E+22
n4 2.2839354834873E+29
n5 4.9929220949483E+36

Nth Root

y√n
2√n 4675.5798570872
3√n 279.61275976134
4√n 68.378211859387
5√n 29.372045452141

Divisors of 21861047

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 -21861046
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 21861047 can be divided by 4 positive divisors. The sum of these divisors (counting 21861047) is 1, the average is 0.25.

Base conversion 21861047

Base System Value
2 Binary 1010011011001001010110111
3 Ternary 1112010122201102
4 Quaternary 1103121022313
5 Quinary 21044023142
6 Senary 2100320315
8 Octal 123311267
10 Decimal 21861047
12 Duodecimal 73a309b
16 Hexadecimal 14d92b7
20 Vigesimal 6gccc7
36 Base36 d0k3b

Cryptographic Hash Functions

md5 f08e0220c68dfdb6eb7ef85d93834dbe
sha1 747b5c0ecb21a486af0ba9e34d3db4dd5d570fe6
sha256 26e1b1ababaf72de7596f0787ac8451bbe2158fb2226ee1983aff30fe3c79952
sha512 df1eedb2dc9b38352ae718cbaf85cd1fc2665b4f5802e07f930a5975d47e70cb74c7c58a5959433a58ab3eb6dcf3e7431c96b07251304ac18389a2c7bd027880
ripemd-160 dab66b34a928a3088720db5fe741b71dad2fbbf2

21861047 as geometric shapes

Circle

Radius = n
Diameter 43722094
Circumference 137357009.30996
Area 1.5013840181523E+15

Sphere

Radius = n
Volume 4.3762435447834E+22
Surface area 6.005536072609E+15
Circumference 137357009.30996

Square

Length = n
Perimeter 87444188
Area 477905375936209
Diagonal 30916189.155076

Cube

Length = n
Surface area 2867432255617254
Volume 1.0447511884894E+22
Space diagonal 37864444.110651

Equilateral Triangle

Length = n
Perimeter 65583141
Area 2.0693909808295E+14
Altitude 18932222.055326

Triangular Pyramid

Length = n
Surface area 2.0693909808295E+14
Volume 1.2312510833893E+21
Height 10305396.385025