20121918 (number)

20121918 is an even 8-digits composite number following 20121917 and preceding 20121919. In scientific notation, it is written as 2.0121918 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors. There are 6363456 positive integers (up to 20121918) that are relatively prime to 20121918.

Interesting facts

Basic properties

Name

Name twenty million one hundred twenty-one thousand nine hundred eighteen

Notation

Scientific notation 2.0121918 × 10^7
Engineering notation 2.0121918 × 10^6

Prime Factorization of 20121918

Prime Factorization 2 × 3 × 23 × 139 × 1049

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20121918
Product of the distinct prime numbers

The prime factorization of 20121918 is 2 × 3 × 23 × 139 × 1049. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 6, 50, 60, 319, 477, 2946, 3, 31926, 50637, 707098, 93441, 4748371, 4781256, 88026147, 36329791, 614254619, 674821064, 2362523867, 7316078851

Basic calculations (n = 20121918)

Multiplication

n×y
n×2 40243836
n×3 60365754
n×4 80487672
n×5 100609590

Division

n÷y
n÷2 10060959
n÷3 6707306
n÷3 5030479.5
n÷5 4024383.6

Exponentiation

ny
n2 404891583998724
n3 8.1471952521124E+21
n4 1.63937194793E+29
n5 3.2987307907747E+36

Nth Root

y√n
2√n 4485.746091789
3√n 271.99220529854
4√n 66.975712700866
5√n 28.889090870813

Divisors of 20121918

1, 2, 3, 6, 23, 46, 69, 138, 139, 278, 417, 834, 1049, 2098, 3147, 3197, 6294, 6394, 9591, 19182, 24127, 48254, 72381, 144762, 145811, 291622, 437433, 874866, 3353653, 6707306, 10060959, 20121918

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20121917
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121918 can be divided by 32 positive divisors. The sum of these divisors (counting 20121918) is 1, the average is 0.03125.

Base conversion 20121918

Base System Value
2 Binary 1001100110000100100111110
3 Ternary 1101212022002020
4 Quaternary 1030300210332
5 Quinary 20122400133
6 Senary 1555141010
8 Octal 114604476
10 Decimal 20121918
12 Duodecimal 68a4766
16 Hexadecimal 133093e
20 Vigesimal 65f4fi
36 Base36 bza66

Cryptographic Hash Functions

md5 b9473fb2d053e6c738bb770a584ea1c6
sha1 be33c61d0b9d5962571ed7caf57cf7af93b8c3b0
sha256 39ecc0126b1553261006b6c8334cb414260787df956f43f7b312717b6ec34da7
sha512 49221cdb6f81751c93644c68ccd5cb8f9fcb2e7899cc83ec1a8f5f9361dfb3813a79f3505f56bed2250c68d3917e404215e48292a6f738327bf8ebfeaeab4f8d
ripemd-160 4034bd1c869a2e6ae0479fd7115e49b6373ab9e5

20121918 as geometric shapes

Circle

Radius = n
Diameter 40243836
Circumference 126429739.52987
Area 1.2720044257907E+15

Sphere

Radius = n
Volume 3.4126891668531E+22
Surface area 5.0880177031629E+15
Circumference 126429739.52987

Square

Length = n
Perimeter 80487672
Area 404891583998724
Diagonal 28456689.336559

Cube

Length = n
Surface area 2429349503992344
Volume 8.1471952521124E+21
Space diagonal 34852184.321735

Equilateral Triangle

Length = n
Perimeter 60365754
Area 1.7532319876071E+14
Altitude 17426092.160867

Triangular Pyramid

Length = n
Surface area 1.7532319876071E+14
Volume 9.6015616840326E+20
Height 9485563.1121864