21438072 (number)

21438072 is an even 8-digits composite number following 21438071 and preceding 21438073. In scientific notation, it is written as 2.1438072 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 32 positive divisors. There are 7053696 positive integers (up to 21438072) that are relatively prime to 21438072.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred thirty-eight thousand seventy-two

Notation

Scientific notation 2.1438072 × 10^7
Engineering notation 2.1438072 × 10^6

Prime Factorization of 21438072

Prime Factorization 2 × 2 × 2 × 9 × 79 × 3769

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5359518
Product of the distinct prime numbers

The prime factorization of 21438072 is 2 × 2 × 2 × 9 × 79 × 3769. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 6, 13, 36, 163, 152, 5630, 9065, 9730, 2454, 761201, 148338, 9134538, 5685349, 16685573, 98392419, 606872996, 179986343, 7676778816, 4125132416

Basic calculations (n = 21438072)

Multiplication

n×y
n×2 42876144
n×3 64314216
n×4 85752288
n×5 107190360

Division

n÷y
n÷2 10719036
n÷3 7146024
n÷3 5359518
n÷5 4287614.4

Exponentiation

ny
n2 459590931077184
n3 9.8527434709797E+21
n4 2.1122382392839E+29
n5 4.5282315454922E+36

Nth Root

y√n
2√n 4630.1265641449
3√n 277.79765480281
4√n 68.045033353985
5√n 29.2574953739

Divisors of 21438072

1, 2, 4, 8, 9, 18, 36, 72, 79, 158, 316, 632, 711, 1422, 2844, 3769, 5688, 7538, 15076, 30152, 33921, 67842, 135684, 271368, 297751, 595502, 1191004, 2382008, 2679759, 5359518, 10719036, 21438072

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 -21438071
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 21438072 can be divided by 32 positive divisors. The sum of these divisors (counting 21438072) is 1, the average is 0.03125.

Base conversion 21438072

Base System Value
2 Binary 1010001110001111001111000
3 Ternary 1111100011111200
4 Quaternary 1101301321320
5 Quinary 20442004242
6 Senary 2043254200
8 Octal 121617170
10 Decimal 21438072
12 Duodecimal 721a360
16 Hexadecimal 1471e78
20 Vigesimal 6djf3c
36 Base36 crhq0

Cryptographic Hash Functions

md5 8799b326f74c336a949fc788ad842412
sha1 f7de404e36941e19af6bc8fb05450b6db90838df
sha256 a44e0ef2af64fb6aa769826bc69c773f1980d7e072b6e6a613c2242bcd88b4fe
sha512 bbda2b67ad73224f586b199d671c611030fd7d51eaf12c8c25c097f5f612aa2738a4bc633af64820b8318b7e9d39b5263711fa804ba3d7f0669dbb223a7164db
ripemd-160 6d513848c0b8387cbd528d7d178044a763beb5b8

21438072 as geometric shapes

Circle

Radius = n
Diameter 42876144
Circumference 134699379.00466
Area 1.4438474927286E+15

Sphere

Radius = n
Volume 4.1271075341513E+22
Surface area 5.7753899709143E+15
Circumference 134699379.00466

Square

Length = n
Perimeter 85752288
Area 459590931077184
Diagonal 30318012.173531

Cube

Length = n
Surface area 2757545586463104
Volume 9.8527434709797E+21
Space diagonal 37131829.92032

Equilateral Triangle

Length = n
Perimeter 64314216
Area 1.9900871083089E+14
Altitude 18565914.96016

Triangular Pyramid

Length = n
Surface area 1.9900871083089E+14
Volume 1.1611569536035E+21
Height 10106004.057844