21105870 (number)

21105870 is an even 8-digits composite number following 21105869 and preceding 21105871. In scientific notation, it is written as 2.1105870 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 5609472 positive integers (up to 21105870) that are relatively prime to 21105870.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred five thousand eight hundred seventy

Notation

Scientific notation 2.1105870 × 10^7
Engineering notation 2.1105870 × 10^6

Prime Factorization of 21105870

Prime Factorization 2 × 15 × 353 × 1993

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21105870
Product of the distinct prime numbers

The prime factorization of 21105870 is 2 × 15 × 353 × 1993. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 81, 38, 383, 522, 3803, 8186, 13063, 33179, 708899, 649654, 8855163, 2151676, 1708363, 44286977, 607136643, 520963114, 3679694601, 7905880036

Basic calculations (n = 21105870)

Multiplication

n×y
n×2 42211740
n×3 63317610
n×4 84423480
n×5 105529350

Division

n÷y
n÷2 10552935
n÷3 7035290
n÷3 5276467.5
n÷5 4221174

Exponentiation

ny
n2 445457748456900
n3 9.401773329424E+21
n4 1.9843260566029E+29
n5 4.1880927788274E+36

Nth Root

y√n
2√n 4594.1125367148
3√n 276.35527133168
4√n 67.779882979501
5√n 29.166253875685

Divisors of 21105870

1, 2, 15, 30, 353, 706, 1993, 3986, 5295, 10590, 29895, 59790, 703529, 1407058, 10552935, 21105870

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 -21105869
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 21105870 can be divided by 16 positive divisors. The sum of these divisors (counting 21105870) is 1, the average is 0.0625.

Base conversion 21105870

Base System Value
2 Binary 1010000100000110011001110
3 Ternary 1110201021210220
4 Quaternary 1100200303032
5 Quinary 20400341440
6 Senary 2032212210
8 Octal 120406316
10 Decimal 21105870
12 Duodecimal 709a066
16 Hexadecimal 1420cce
20 Vigesimal 6bi4da
36 Base36 ckde6

Cryptographic Hash Functions

md5 a228cc6011a52dcc33d52ffc013473d0
sha1 bb01a1cd946069ab779521ed0258419184d2889a
sha256 6a60e25c2b02be1ea41a0493801c2ed406a2dfbd4c0b25cdb573ef9e4a9c0426
sha512 7777c820f605f5b78c43cca6c264621208c3c98ce31622fb7ff0e685cf603f31eac8a245a0350f42a52caaac14b47845d0b40712f6fded5751d83666af765bc9
ripemd-160 6e675f58aa40a861ebdc865dd75824e3c6770854

21105870 as geometric shapes

Circle

Radius = n
Diameter 42211740
Circumference 132612092.27924
Area 1.3994467900368E+15

Sphere

Radius = n
Volume 3.9382056029913E+22
Surface area 5.5977871601474E+15
Circumference 132612092.27924

Square

Length = n
Perimeter 84423480
Area 445457748456900
Diagonal 29848207.599683

Cube

Length = n
Surface area 2672746490741400
Volume 9.401773329424E+21
Space diagonal 36556439.177944

Equilateral Triangle

Length = n
Perimeter 63317610
Area 1.9288886323815E+14
Altitude 18278219.588972

Triangular Pyramid

Length = n
Surface area 1.9288886323815E+14
Volume 1.1080096127358E+21
Height 9949402.5332278