20121397 (number)

20121397 is an odd 8-digits composite number following 20121396 and preceding 20121398. In scientific notation, it is written as 2.0121397 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 19741696 positive integers (up to 20121397) that are relatively prime to 20121397.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121397 × 10^7
Engineering notation 2.0121397 × 10^6

Prime Factorization of 20121397

Prime Factorization 53 × 379649

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20121397
Product of the distinct prime numbers

The prime factorization of 20121397 is 53 × 379649. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20121397)

Multiplication

n×y
n×2 40242794
n×3 60364191
n×4 80485588
n×5 100606985

Division

n÷y
n÷2 10060698.5
n÷3 6707132.3333333
n÷3 5030349.25
n÷5 4024279.4

Exponentiation

ny
n2 404870617231609
n3 8.1465624229522E+21
n4 1.639202166975E+29
n5 3.2983037564965E+36

Nth Root

y√n
2√n 4485.6880185764
3√n 271.98985778936
4√n 66.975279160123
5√n 28.888941269048

Divisors of 20121397

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121396
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121397 can be divided by 4 positive divisors. The sum of these divisors (counting 20121397) is 1, the average is 0.25.

Base conversion 20121397

Base System Value
2 Binary 1001100110000011100110101
3 Ternary 1101212021100221
4 Quaternary 1030300130311
5 Quinary 20122341042
6 Senary 1555134341
8 Octal 114603465
10 Decimal 20121397
12 Duodecimal 68a43b1
16 Hexadecimal 1330735
20 Vigesimal 65f39h
36 Base36 bz9rp

Cryptographic Hash Functions

md5 63d31cb8f27127f75fe6fc8b25f69d58
sha1 b5b1ac8627b28db75f7f839c8d4b5fcf6e184500
sha256 4d7839fe592526111f8f579fac04fea5eb71c6485faf6b6dab751d4968c2c376
sha512 993b9079257818663901522ea2b7363b1386595350372ba379ecbb94f64819efebbd1c4f83b5deed5227025a3e828aea246555ffc6d62081cc8f4e21c816de95
ripemd-160 d1acdafccc5173bbd9b8d7e0715af34115e569e5

20121397 as geometric shapes

Circle

Radius = n
Diameter 40242794
Circumference 126426465.99033
Area 1.2719385567492E+15

Sphere

Radius = n
Volume 3.4124240879943E+22
Surface area 5.0877542269968E+15
Circumference 126426465.99033

Square

Length = n
Perimeter 80485588
Area 404870617231609
Diagonal 28455952.531293

Cube

Length = n
Surface area 2429223703389654
Volume 8.1465624229522E+21
Space diagonal 34851281.923264

Equilateral Triangle

Length = n
Perimeter 60364191
Area 1.7531411988423E+14
Altitude 17425640.961632

Triangular Pyramid

Length = n
Surface area 1.7531411988423E+14
Volume 9.6008158877151E+20
Height 9485317.5104311