21397930 (number)

21397930 is an even 8-digits composite number following 21397929 and preceding 21397931. In scientific notation, it is written as 2.1397930 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 8547472 positive integers (up to 21397930) that are relatively prime to 21397930.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred ninety-seven thousand nine hundred thirty

Notation

Scientific notation 2.1397930 × 10^7
Engineering notation 2.1397930 × 10^6

Prime Factorization of 21397930

Prime Factorization 2 × 5 × 1439 × 1487

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21397930
Product of the distinct prime numbers

The prime factorization of 21397930 is 2 × 5 × 1439 × 1487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 32, 24, 777, 981, 1837, 8782, 73788, 23346, 949052, 947310, 5066911, 9708005, 33158153, 20031919, 861858248, 947092995, 1457607989, 2570502249

Basic calculations (n = 21397930)

Multiplication

n×y
n×2 42795860
n×3 64193790
n×4 85591720
n×5 106989650

Division

n÷y
n÷2 10698965
n÷3 7132643.3333333
n÷3 5349482.5
n÷5 4279586

Exponentiation

ny
n2 457871408284900
n3 9.7975003434817E+21
n4 2.096462265248E+29
n5 4.4859952799418E+36

Nth Root

y√n
2√n 4625.7896623171
3√n 277.62415784414
4√n 68.013158008705
5√n 29.246530441812

Divisors of 21397930

1, 2, 5, 10, 1439, 1487, 2878, 2974, 7195, 7435, 14390, 14870, 2139793, 4279586, 10698965, 21397930

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 -21397929
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 21397930 can be divided by 16 positive divisors. The sum of these divisors (counting 21397930) is 1, the average is 0.0625.

Base conversion 21397930

Base System Value
2 Binary 1010001101000000110101010
3 Ternary 1111021010102221
4 Quaternary 1101220012222
5 Quinary 20434213210
6 Senary 2042344254
8 Octal 121500652
10 Decimal 21397930
12 Duodecimal 71bb08a
16 Hexadecimal 14681aa
20 Vigesimal 6deega
36 Base36 cqmqy

Cryptographic Hash Functions

md5 72489dad7f0a51e7905d36603e06b69c
sha1 3a992f7a351947deff97b192b2d74902edf66f7b
sha256 c3a38b769f0bfe8d9e049fc843fafcb5eec05edea143914446965d4e5983ef93
sha512 2902c250c04988ba95a2b993b61e9c0b973124a2797490f94454bf57d3614c8af77ccae15ca1a44cb87cf6656b183f1ad4f8640043037d4670a207965aca91b9
ripemd-160 a058adac9a7367441e2dde32430d840f3645575d

21397930 as geometric shapes

Circle

Radius = n
Diameter 42795860
Circumference 134447159.38006
Area 1.4384454525567E+15

Sphere

Radius = n
Volume 4.1039673470167E+22
Surface area 5.7537818102266E+15
Circumference 134447159.38006

Square

Length = n
Perimeter 85591720
Area 457871408284900
Diagonal 30261242.81271

Cube

Length = n
Surface area 2747228449709400
Volume 9.7975003434817E+21
Space diagonal 37062301.936802

Equilateral Triangle

Length = n
Perimeter 64193790
Area 1.9826413562064E+14
Altitude 18531150.968401

Triangular Pyramid

Length = n
Surface area 1.9826413562064E+14
Volume 1.1546464885922E+21
Height 10087080.93757