20121897 (number)

20121897 is an odd 8-digits composite number following 20121896 and preceding 20121898. In scientific notation, it is written as 2.0121897 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 12445440 positive integers (up to 20121897) that are relatively prime to 20121897.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121897 × 10^7
Engineering notation 2.0121897 × 10^6

Prime Factorization of 20121897

Prime Factorization 3 × 17 × 71 × 5557

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121897
Product of the distinct prime numbers

The prime factorization of 20121897 is 3 × 17 × 71 × 5557. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 40, 51, 189, 995, 9176, 7899, 77046, 64252, 965490, 286819, 6188650, 5589282, 99752560, 33285341, 479733591, 520084088, 398061339, 7671810105

Basic calculations (n = 20121897)

Multiplication

n×y
n×2 40243794
n×3 60365691
n×4 80487588
n×5 100609485

Division

n÷y
n÷2 10060948.5
n÷3 6707299
n÷3 5030474.25
n÷5 4024379.4

Exponentiation

ny
n2 404890738878609
n3 8.1471697439693E+21
n4 1.6393651042967E+29
n5 3.2987135774052E+36

Nth Root

y√n
2√n 4485.7437510406
3√n 271.99211067804
4√n 66.975695226258
5√n 28.889084840859

Divisors of 20121897

1, 3, 17, 51, 71, 213, 1207, 3621, 5557, 16671, 94469, 283407, 394547, 1183641, 6707299, 20121897

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 -20121896
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 20121897 can be divided by 16 positive divisors. The sum of these divisors (counting 20121897) is 1, the average is 0.0625.

Base conversion 20121897

Base System Value
2 Binary 1001100110000100100101001
3 Ternary 1101212022001110
4 Quaternary 1030300210221
5 Quinary 20122400042
6 Senary 1555140533
8 Octal 114604451
10 Decimal 20121897
12 Duodecimal 68a4749
16 Hexadecimal 1330929
20 Vigesimal 65f4eh
36 Base36 bza5l

Cryptographic Hash Functions

md5 db35d37dce1169d9b86c1001e032c1b4
sha1 389584ec957309873274bb20a4d3c1425c88c675
sha256 40b980201e574ee4478bb0ac6487deb3f4d3a74671423e5443f28fe1bb4e4d1e
sha512 c737c2e2b577367ea156de6c60aea275f23d086c84df0edd19d62860c043626e8eb147daedc9e3307e9b5e15e2117fce5e524ffc82342390090c115f4df97a53
ripemd-160 609ac93fc99ad10b9088b4ac436ce1adeb68cef2

20121897 as geometric shapes

Circle

Radius = n
Diameter 40243794
Circumference 126429607.58298
Area 1.2720017707676E+15

Sphere

Radius = n
Volume 3.4126784820271E+22
Surface area 5.0880070830703E+15
Circumference 126429607.58298

Square

Length = n
Perimeter 80487588
Area 404890738878609
Diagonal 28456659.638074

Cube

Length = n
Surface area 2429344433271654
Volume 8.1471697439693E+21
Space diagonal 34852147.948668

Equilateral Triangle

Length = n
Perimeter 60365691
Area 1.7532283281296E+14
Altitude 17426073.974334

Triangular Pyramid

Length = n
Surface area 1.7532283281296E+14
Volume 9.6015316223976E+20
Height 9485553.2126915