20191220 (number)

20191220 is an even 8-digits composite number following 20191219 and preceding 20191221. In scientific notation, it is written as 2.0191220 × 10^7. The sum of its digits is 17. It has a total of 5 prime factors and 24 positive divisors. There are 6922656 positive integers (up to 20191220) that are relatively prime to 20191220.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0191220 × 10^7
Engineering notation 2.0191220 × 10^6

Prime Factorization of 20191220

Prime Factorization 2 × 2 × 5 × 7 × 144223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10095610
Product of the distinct prime numbers

The prime factorization of 20191220 is 2 × 2 × 5 × 7 × 144223. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 5, 87, 46, 44, 820, 6985, 8913, 78181, 88839, 579620, 764231, 2583149, 6296325, 29109917, 23280765, 574661336, 636652508, 5671751849, 7769975569

Basic calculations (n = 20191220)

Multiplication

n×y
n×2 40382440
n×3 60573660
n×4 80764880
n×5 100956100

Division

n÷y
n÷2 10095610
n÷3 6730406.6666667
n÷3 5047805
n÷5 4038244

Exponentiation

ny
n2 407685365088400
n3 8.2316648972802E+21
n4 1.6620735690726E+29
n5 3.355929308933E+36

Nth Root

y√n
2√n 4493.4641425074
3√n 272.30410408005
4√n 67.033306217935
5√n 28.908962925983

Divisors of 20191220

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144223, 288446, 576892, 721115, 1009561, 1442230, 2019122, 2884460, 4038244, 5047805, 10095610, 20191220

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20191219
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20191220 can be divided by 24 positive divisors. The sum of these divisors (counting 20191220) is 1, the average is 0.041666666666667.

Base conversion 20191220

Base System Value
2 Binary 1001101000001011111110100
3 Ternary 1101222211010222
4 Quaternary 1031001133310
5 Quinary 20132104340
6 Senary 2000433512
8 Octal 115013764
10 Decimal 20191220
12 Duodecimal 6918898
16 Hexadecimal 13417f4
20 Vigesimal 663i10
36 Base36 c0rn8

Cryptographic Hash Functions

md5 7c769bcd349e0a6bc27421075916846e
sha1 05eea1acab8f10824d4f107a0e9cfaddc95cf1e1
sha256 1b6682672621303c3a663bedeb9e15ac46242a17876f19e7b0566742771cf32c
sha512 3585454071a637f315d18846880388508df90cdc92301152d23c6f270913faaad2e0fd62c7b2689ade6e0a00f158006b7997cc668694f8c10fc99b2ca546092a
ripemd-160 07188d5e55cd100d177785b2a94d9de3ed2842e9

20191220 as geometric shapes

Circle

Radius = n
Diameter 40382440
Circumference 126865176.83803
Area 1.2807813479378E+15

Sphere

Radius = n
Volume 3.4480717290811E+22
Surface area 5.1231253917512E+15
Circumference 126865176.83803

Square

Length = n
Perimeter 80764880
Area 407685365088400
Diagonal 28554697.164859

Cube

Length = n
Surface area 2446112190530400
Volume 8.2316648972802E+21
Space diagonal 34972218.906801

Equilateral Triangle

Length = n
Perimeter 60573660
Area 1.7653294145884E+14
Altitude 17486109.4534

Triangular Pyramid

Length = n
Surface area 1.7653294145884E+14
Volume 9.7011101155368E+20
Height 9518232.3882863