20121788 (number)

20121788 is an even 8-digits composite number following 20121787 and preceding 20121789. In scientific notation, it is written as 2.0121788 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 10040112 positive integers (up to 20121788) that are relatively prime to 20121788.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0121788 × 10^7
Engineering notation 2.0121788 × 10^6

Prime Factorization of 20121788

Prime Factorization 2 × 2 × 509 × 9883

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10060894
Product of the distinct prime numbers

The prime factorization of 20121788 is 2 × 2 × 509 × 9883. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 21, 71, 505, 185, 5781, 5238, 89029, 40546, 150672, 637573, 3198193, 5634049, 76629857, 5457608, 436996479, 179676121, 2927544029, 3495421484

Basic calculations (n = 20121788)

Multiplication

n×y
n×2 40243576
n×3 60365364
n×4 80487152
n×5 100608940

Division

n÷y
n÷2 10060894
n÷3 6707262.6666667
n÷3 5030447
n÷5 4024357.6

Exponentiation

ny
n2 404886352316944
n3 8.1470373454149E+21
n4 1.6393295829252E+29
n5 3.2986242329749E+36

Nth Root

y√n
2√n 4485.7316014224
3√n 271.99161955149
4√n 66.975604524502
5√n 28.889053542447

Divisors of 20121788

1, 2, 4, 509, 1018, 2036, 9883, 19766, 39532, 5030447, 10060894, 20121788

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121787
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121788 can be divided by 12 positive divisors. The sum of these divisors (counting 20121788) is 1, the average is 0.083333333333333.

Base conversion 20121788

Base System Value
2 Binary 1001100110000100010111100
3 Ternary 1101212021220102
4 Quaternary 1030300202330
5 Quinary 20122344123
6 Senary 1555140232
8 Octal 114604274
10 Decimal 20121788
12 Duodecimal 68a4678
16 Hexadecimal 13308bc
20 Vigesimal 65f498
36 Base36 bza2k

Cryptographic Hash Functions

md5 56e6a86bd2f5c62bc2ec23de1c0adfe8
sha1 2194b7f6e99d37fb289a5c3fa1a9d734f362daaa
sha256 dd233d0df96963ac7d6d6dd0da869681b4eda838879e95056330fd5a87c64a44
sha512 18e0bdd03bbb377dd871aa3a5755ef6b3c2fb4ad449e2431abf781495718cc6462e51e5649609d4604c044ac1d1a4e6aa3bd64f3e094d59b7ea685854c4e66b7
ripemd-160 4fe7c789065c269186b5030881632f6000ac0701

20121788 as geometric shapes

Circle

Radius = n
Diameter 40243576
Circumference 126428922.71578
Area 1.2719879899777E+15

Sphere

Radius = n
Volume 3.4126230230503E+22
Surface area 5.0879519599107E+15
Circumference 126428922.71578

Square

Length = n
Perimeter 80487152
Area 404886352316944
Diagonal 28456505.488796

Cube

Length = n
Surface area 2429318113901664
Volume 8.1470373454149E+21
Space diagonal 34851959.15513

Equilateral Triangle

Length = n
Perimeter 60365364
Area 1.7532093337604E+14
Altitude 17425979.577565

Triangular Pyramid

Length = n
Surface area 1.7532093337604E+14
Volume 9.6013755892048E+20
Height 9485501.8295987