21492945 (number)

21492945 is an odd 8-digits composite number following 21492944 and preceding 21492946. In scientific notation, it is written as 2.1492945 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 11462688 positive integers (up to 21492945) that are relatively prime to 21492945.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-two thousand nine hundred forty-five

Notation

Scientific notation 2.1492945 × 10^7
Engineering notation 2.1492945 × 10^6

Prime Factorization of 21492945

Prime Factorization 15 × 3 × 9 × 53069

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21492945
Product of the distinct prime numbers

The prime factorization of 21492945 is 15 × 3 × 9 × 53069. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 56, 66, 719, 493, 4675, 2742, 18649, 71042, 665912, 847091, 3155142, 9176431, 7044792, 49486258, 924635300, 656919693, 9081036541, 8479141952

Basic calculations (n = 21492945)

Multiplication

n×y
n×2 42985890
n×3 64478835
n×4 85971780
n×5 107464725

Division

n÷y
n÷2 10746472.5
n÷3 7164315
n÷3 5373236.25
n÷5 4298589

Exponentiation

ny
n2 461946684773025
n3 9.928594688759E+21
n4 2.1339473957279E+29
n5 4.5864814009273E+36

Nth Root

y√n
2√n 4636.0484251138
3√n 278.03447030433
4√n 68.088533727154
5√n 29.27245759009

Divisors of 21492945

1, 3, 9, 15, 27, 45, 135, 405, 53069, 159207, 477621, 796035, 1432863, 2388105, 7164315, 21492945

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 -21492944
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 21492945 can be divided by 16 positive divisors. The sum of these divisors (counting 21492945) is 1, the average is 0.0625.

Base conversion 21492945

Base System Value
2 Binary 1010001111111010011010001
3 Ternary 1111102221210000
4 Quaternary 1101333103101
5 Quinary 21000233240
6 Senary 2044400213
8 Octal 121772321
10 Decimal 21492945
12 Duodecimal 7246069
16 Hexadecimal 147f4d1
20 Vigesimal 6e6c75
36 Base36 cso29

Cryptographic Hash Functions

md5 f3344b697296f7c34a9b3d206238a3ad
sha1 217a8d04868fd5abc101f79b49633a2b16ec7fba
sha256 56c03fd6fe6b2f15023eb20aa7f39230a76ab5ff1ec62a3759b255cb2cf15b1a
sha512 a0b18aa9ea5120d6f750e41f25b337bd1e4302d365460463d288e7c86912791a8a8f4e7206067e34cb49932a6746456062f3c6566a908e76f769a683ad60289a
ripemd-160 22cf1ba574c72c2e4f4eea0657b1005e43da5ec3

21492945 as geometric shapes

Circle

Radius = n
Diameter 42985890
Circumference 135044156.23202
Area 1.4512483112331E+15

Sphere

Radius = n
Volume 4.1588800179568E+22
Surface area 5.8049932449324E+15
Circumference 135044156.23202

Square

Length = n
Perimeter 85971780
Area 461946684773025
Diagonal 30395614.314339

Cube

Length = n
Surface area 2771680108638150
Volume 9.928594688759E+21
Space diagonal 37226872.744283

Equilateral Triangle

Length = n
Perimeter 64478835
Area 2.0002878210372E+14
Altitude 18613436.372142

Triangular Pyramid

Length = n
Surface area 2.0002878210372E+14
Volume 1.1700961053457E+21
Height 10131871.438113