20145988 (number)

20145988 is an even 8-digits composite number following 20145987 and preceding 20145989. In scientific notation, it is written as 2.0145988 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 12 positive divisors. There are 10063872 positive integers (up to 20145988) that are relatively prime to 20145988.

Interesting facts

Basic properties

Name

Name twenty million one hundred forty-five thousand nine hundred eighty-eight

Notation

Scientific notation 2.0145988 × 10^7
Engineering notation 2.0145988 × 10^6

Prime Factorization of 20145988

Prime Factorization 2 × 2 × 1873 × 2689

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10072994
Product of the distinct prime numbers

The prime factorization of 20145988 is 2 × 2 × 1873 × 2689. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 10, 78, 93, 836, 898, 5410, 1751, 29097, 90220, 501640, 351416, 9820140, 9629663, 83219155, 17160243, 467533676, 526734051, 9060122775, 1287131052

Basic calculations (n = 20145988)

Multiplication

n×y
n×2 40291976
n×3 60437964
n×4 80583952
n×5 100729940

Division

n÷y
n÷2 10072994
n÷3 6715329.3333333
n÷3 5036497
n÷5 4029197.6

Exponentiation

ny
n2 405860832496144
n3 8.1764674611373E+21
n4 1.6472301535446E+29
n5 3.3185078906548E+36

Nth Root

y√n
2√n 4488.428232689
3√n 272.10061517029
4√n 66.99573294389
5√n 28.895999038688

Divisors of 20145988

1, 2, 4, 1873, 2689, 3746, 5378, 7492, 10756, 5036497, 10072994, 20145988

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 -20145987
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 20145988 can be divided by 12 positive divisors. The sum of these divisors (counting 20145988) is 1, the average is 0.083333333333333.

Base conversion 20145988

Base System Value
2 Binary 1001100110110011101000100
3 Ternary 1101220112002201
4 Quaternary 1030312131010
5 Quinary 20124132423
6 Senary 1555444244
8 Octal 114663504
10 Decimal 20145988
12 Duodecimal 68b6684
16 Hexadecimal 1336744
20 Vigesimal 65i4j8
36 Base36 bzsqs

Cryptographic Hash Functions

md5 0c25aec95839b83ee44274796a0ef0f9
sha1 eddcb3b3a47a0435838e3f91758feaf2cbc581eb
sha256 2b216f49b2ad4334cfd205bbc70a4d4d6b25568386b0a22b3fe103dddeac1772
sha512 f3846380ae1e8a503f881ce71ac6ac8e44821f3d6a3b45522b6828dc9557707580fd8ffb8849ef7b4da53161b656d367e4ce1ac4f2a7036df19bbb0864322621
ripemd-160 7ac611e11ee8623b77be03314b3b0581b94f4df3

20145988 as geometric shapes

Circle

Radius = n
Diameter 40291976
Circumference 126580975.80022
Area 1.2750494097497E+15

Sphere

Radius = n
Volume 3.4249506810967E+22
Surface area 5.1001976389989E+15
Circumference 126580975.80022

Square

Length = n
Perimeter 80583952
Area 405860832496144
Diagonal 28490729.457006

Cube

Length = n
Surface area 2435164994976864
Volume 8.1764674611373E+21
Space diagonal 34893874.784673

Equilateral Triangle

Length = n
Perimeter 60437964
Area 1.7574289567138E+14
Altitude 17446937.392336

Triangular Pyramid

Length = n
Surface area 1.7574289567138E+14
Volume 9.6360593132023E+20
Height 9496909.8190019