20121868 (number)

20121868 is an even 8-digits composite number following 20121867 and preceding 20121869. In scientific notation, it is written as 2.0121868 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors. There are 9253440 positive integers (up to 20121868) that are relatively prime to 20121868.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand eight hundred sixty-eight

Notation

Scientific notation 2.0121868 × 10^7
Engineering notation 2.0121868 × 10^6

Prime Factorization of 20121868

Prime Factorization 2 × 2 × 13 × 379 × 1021

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10060934
Product of the distinct prime numbers

The prime factorization of 20121868 is 2 × 2 × 13 × 379 × 1021. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 5, 81, 30, 176, 767, 4000, 576, 83129, 2079, 96432, 618776, 9632603, 2559272, 87448633, 25729218, 146809754, 940075924, 113235046, 4642450320

Basic calculations (n = 20121868)

Multiplication

n×y
n×2 40243736
n×3 60365604
n×4 80487472
n×5 100609340

Division

n÷y
n÷2 10060934
n÷3 6707289.3333333
n÷3 5030467
n÷5 4024373.6

Exponentiation

ny
n2 404889571809424
n3 8.1471345185258E+21
n4 1.6393556536002E+29
n5 3.2986898066797E+36

Nth Root

y√n
2√n 4485.7405185766
3√n 271.99198001151
4√n 66.975671094634
5√n 28.889076513772

Divisors of 20121868

1, 2, 4, 13, 26, 52, 379, 758, 1021, 1516, 2042, 4084, 4927, 9854, 13273, 19708, 26546, 53092, 386959, 773918, 1547836, 5030467, 10060934, 20121868

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 -20121867
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 20121868 can be divided by 24 positive divisors. The sum of these divisors (counting 20121868) is 1, the average is 0.041666666666667.

Base conversion 20121868

Base System Value
2 Binary 1001100110000100100001100
3 Ternary 1101212022000101
4 Quaternary 1030300210030
5 Quinary 20122344433
6 Senary 1555140444
8 Octal 114604414
10 Decimal 20121868
12 Duodecimal 68a4724
16 Hexadecimal 133090c
20 Vigesimal 65f4d8
36 Base36 bza4s

Cryptographic Hash Functions

md5 c94bab3f88188eecdb68f8f4cd7f7857
sha1 ad98d996708e8b784011afef949eebfb8891ba9c
sha256 b0e9fece58874b672064a59caaab9184cf3e0c1882faea57d2779182ff18fc5b
sha512 cbf5355b2ba52cfcefe959d92cb700f7ab9f502944e1f6a0bf0071cbb71294a88a96bbb664c4ebc8e957343abac8fa2cbd878ed86782dca35dbebffd470e6bf2
ripemd-160 2c30050f49919f20a6ac87143b4c46adc710ecd6

20121868 as geometric shapes

Circle

Radius = n
Diameter 40243736
Circumference 126429425.37061
Area 1.2719981043116E+15

Sphere

Radius = n
Volume 3.4126637268278E+22
Surface area 5.0879924172464E+15
Circumference 126429425.37061

Square

Length = n
Perimeter 80487472
Area 404889571809424
Diagonal 28456618.625881

Cube

Length = n
Surface area 2429337430856544
Volume 8.1471345185258E+21
Space diagonal 34852097.719194

Equilateral Triangle

Length = n
Perimeter 60365604
Area 1.7532232745718E+14
Altitude 17426048.859597

Triangular Pyramid

Length = n
Surface area 1.7532232745718E+14
Volume 9.6014901088143E+20
Height 9485539.5419604