21997890 (number)

21997890 is an even 8-digits composite number following 21997889 and preceding 21997891. In scientific notation, it is written as 2.1997890 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 5610528 positive integers (up to 21997890) that are relatively prime to 21997890.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred ninety-seven thousand eight hundred ninety

Notation

Scientific notation 2.1997890 × 10^7
Engineering notation 2.1997890 × 10^6

Prime Factorization of 21997890

Prime Factorization 2 × 9 × 115 × 10627

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21997890
Product of the distinct prime numbers

The prime factorization of 21997890 is 2 × 9 × 115 × 10627. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 4, 46, 12, 988, 58, 2772, 7616, 9060, 72783, 218223, 642469, 9764535, 692841, 50209806, 92025892, 770698477, 980567591, 6013638231, 3297004439

Basic calculations (n = 21997890)

Multiplication

n×y
n×2 43995780
n×3 65993670
n×4 87991560
n×5 109989450

Division

n÷y
n÷2 10998945
n÷3 7332630
n÷3 5499472.5
n÷5 4399578

Exponentiation

ny
n2 483907164452100
n3 1.0644936573829E+22
n4 2.3416614380807E+29
n5 5.1511610732141E+36

Nth Root

y√n
2√n 4690.1908276743
3√n 280.19497474431
4√n 68.484967895694
5√n 29.408725602921

Divisors of 21997890

1, 2, 9, 18, 115, 230, 1035, 2070, 10627, 21254, 95643, 191286, 1222105, 2444210, 10998945, 21997890

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 -21997889
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 21997890 can be divided by 16 positive divisors. The sum of these divisors (counting 21997890) is 1, the average is 0.0625.

Base conversion 21997890

Base System Value
2 Binary 1010011111010100101000010
3 Ternary 1112101121102200
4 Quaternary 1103322211002
5 Quinary 21112413030
6 Senary 2103254030
8 Octal 123724502
10 Decimal 21997890
12 Duodecimal 744a316
16 Hexadecimal 14fa942
20 Vigesimal 6h9eea
36 Base36 d3hoi

Cryptographic Hash Functions

md5 13718a6fc67fbf06b8138f21dfbd4fb8
sha1 04a9d62c7fa1c70f9d940a6224af1870748a8caf
sha256 26696e1d69f23d0ed2c82700df7721e33bb9c1d9af60b11bf5bc458520f63c3e
sha512 820da992f01e19b01640b349b983b85d4f1e5f14b117afe20757eb9f6d58c50400db97c7e939791e0e9894211cd8d1c95691b8bcd440dd6e81e82274561fabdf
ripemd-160 025849b8271dda155bf26a86c554ba4d2e9cfecf

21997890 as geometric shapes

Circle

Radius = n
Diameter 43995780
Circumference 138216819.23695
Area 1.5202391928622E+15

Sphere

Radius = n
Volume 4.4589406051028E+22
Surface area 6.0809567714487E+15
Circumference 138216819.23695

Square

Length = n
Perimeter 87991560
Area 483907164452100
Diagonal 31109714.381591

Cube

Length = n
Surface area 2903442986712600
Volume 1.0644936573829E+22
Space diagonal 38101463.139311

Equilateral Triangle

Length = n
Perimeter 65993670
Area 2.0953794874441E+14
Altitude 19050731.569656

Triangular Pyramid

Length = n
Surface area 2.0953794874441E+14
Volume 1.2545178061092E+21
Height 10369904.793864