20150921 (number)

20150921 is an odd 8-digits composite number following 20150920 and preceding 20150922. In scientific notation, it is written as 2.0150921 × 10^7. The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors. There are 16163664 positive integers (up to 20150921) that are relatively prime to 20150921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0150921 × 10^7
Engineering notation 2.0150921 × 10^6

Prime Factorization of 20150921

Prime Factorization 7 × 23 × 47 × 2663

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20150921
Product of the distinct prime numbers

The prime factorization of 20150921 is 7 × 23 × 47 × 2663. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 41, 38, 847, 144, 1070, 418, 60235, 28801, 306359, 734578, 7775966, 4981445, 69786965, 45639492, 567868774, 43697773, 9705993561, 3041654215

Basic calculations (n = 20150921)

Multiplication

n×y
n×2 40301842
n×3 60452763
n×4 80603684
n×5 100754605

Division

n÷y
n÷2 10075460.5
n÷3 6716973.6666667
n÷3 5037730.25
n÷5 4030184.2

Exponentiation

ny
n2 406059617148241
n3 8.1824752664444E+21
n4 1.6488441267858E+29
n5 3.3225727740174E+36

Nth Root

y√n
2√n 4488.9777232684
3√n 272.12282245034
4√n 66.999833755528
5√n 28.897414010282

Divisors of 20150921

1, 7, 23, 47, 161, 329, 1081, 2663, 7567, 18641, 61249, 125161, 428743, 876127, 2878703, 20150921

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20150920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20150921 can be divided by 16 positive divisors. The sum of these divisors (counting 20150921) is 1, the average is 0.0625.

Base conversion 20150921

Base System Value
2 Binary 1001100110111101010001001
3 Ternary 1101220202212102
4 Quaternary 1030313222021
5 Quinary 20124312141
6 Senary 1555523145
8 Octal 114675211
10 Decimal 20150921
12 Duodecimal 68b94b5
16 Hexadecimal 1337a89
20 Vigesimal 65ih61
36 Base36 bzwjt

Cryptographic Hash Functions

md5 a281e2034f2992c7ecdef963f0fdf99d
sha1 faf0aaafe99dd6876c8dfa5d03f6c6ced56ed503
sha256 b7ab31394528727366b8e35d70f82fe08d412758287e2f9ba04ec6849ee4b34a
sha512 0b09f43a8eedcddec438eea3d51f5e94cc3ec017de14ba3f8768597513be219633267c019112abe8ea7c09baa55dec830ed27781179c788c6a4c0eff30f0fee5
ripemd-160 3f76957616be99e964e859ef95c90e7c7877582f

20150921 as geometric shapes

Circle

Radius = n
Diameter 40301842
Circumference 126611970.75334
Area 1.2756739101524E+15

Sphere

Radius = n
Volume 3.4274672246989E+22
Surface area 5.1026956406096E+15
Circumference 126611970.75334

Square

Length = n
Perimeter 80603684
Area 406059617148241
Diagonal 28497705.772509

Cube

Length = n
Surface area 2436357702889446
Volume 8.1824752664444E+21
Space diagonal 34902418.991307

Equilateral Triangle

Length = n
Perimeter 60452763
Area 1.7582897195068E+14
Altitude 17451209.495653

Triangular Pyramid

Length = n
Surface area 1.7582897195068E+14
Volume 9.6431395796568E+20
Height 9499235.2575029