20121591 (number)

20121591 is an odd 8-digits composite number following 20121590 and preceding 20121592. In scientific notation, it is written as 2.0121591 × 10^7. The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors. There are 10722816 positive integers (up to 20121591) that are relatively prime to 20121591.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand five hundred ninety-one

Notation

Scientific notation 2.0121591 × 10^7
Engineering notation 2.0121591 × 10^6

Prime Factorization of 20121591

Prime Factorization 21 × 17 × 359 × 157

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20121591
Product of the distinct prime numbers

The prime factorization of 20121591 is 21 × 17 × 359 × 157. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 23, 25, 159, 867, 4855, 2595, 99504, 37670, 945597, 948403, 8723161, 9408153, 63965423, 67348278, 396388820, 571860141, 2957441611, 2674529338

Basic calculations (n = 20121591)

Multiplication

n×y
n×2 40243182
n×3 60364773
n×4 80486364
n×5 100607955

Division

n÷y
n÷2 10060795.5
n÷3 6707197
n÷3 5030397.75
n÷5 4024318.2

Exponentiation

ny
n2 404878424371281
n3 8.1467980599233E+21
n4 1.6392653852137E+29
n5 3.2984627621728E+36

Nth Root

y√n
2√n 4485.7096428547
3√n 271.9907319146
4√n 66.975440594704
5√n 28.888996975249

Divisors of 20121591

1, 17, 21, 157, 357, 359, 2669, 3297, 6103, 7539, 56049, 56363, 128163, 958171, 1183623, 20121591

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 -20121590
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 20121591 can be divided by 16 positive divisors. The sum of these divisors (counting 20121591) is 1, the average is 0.0625.

Base conversion 20121591

Base System Value
2 Binary 1001100110000011111110111
3 Ternary 1101212021122010
4 Quaternary 1030300133313
5 Quinary 20122342331
6 Senary 1555135303
8 Octal 114603767
10 Decimal 20121591
12 Duodecimal 68a4533
16 Hexadecimal 13307f7
20 Vigesimal 65f3jb
36 Base36 bz9x3

Cryptographic Hash Functions

md5 a5d0b7ce37e8bbd20c0576f646a903b2
sha1 6490053f7eec64128f504b8e0cdcf41fd301971c
sha256 559a7d45f319ad00b75ef1aaca23892274c3a1ae005d096db453df071a25b4c6
sha512 14179de483c7a6750e108fd032566bff31521c874e5359b03051e558c23fc2dafa595f71900a5c544b82870ffc3bceae3359c1becf000e964102556626164ac1
ripemd-160 014ea7094063e12036484dc2b9264853123c89e6

20121591 as geometric shapes

Circle

Radius = n
Diameter 40243182
Circumference 126427684.92828
Area 1.2719630836018E+15

Sphere

Radius = n
Volume 3.412522791378E+22
Surface area 5.0878523344073E+15
Circumference 126427684.92828

Square

Length = n
Perimeter 80486364
Area 404878424371281
Diagonal 28456226.888724

Cube

Length = n
Surface area 2429270546227686
Volume 8.1467980599233E+21
Space diagonal 34851617.941121

Equilateral Triangle

Length = n
Perimeter 60364773
Area 1.7531750047487E+14
Altitude 17425808.97056

Triangular Pyramid

Length = n
Surface area 1.7531750047487E+14
Volume 9.6010935885487E+20
Height 9485408.9629081