21492990 (number)

21492990 is an even 8-digits composite number following 21492989 and preceding 21492991. In scientific notation, it is written as 2.1492990 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 5429376 positive integers (up to 21492990) that are relatively prime to 21492990.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-two thousand nine hundred ninety

Notation

Scientific notation 2.1492990 × 10^7
Engineering notation 2.1492990 × 10^6

Prime Factorization of 21492990

Prime Factorization 2 × 5 × 9 × 19 × 12569

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21492990
Product of the distinct prime numbers

The prime factorization of 21492990 is 2 × 5 × 9 × 19 × 12569. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 1, 75, 2, 936, 2, 8572, 6309, 71235, 20394, 549503, 89738, 3899043, 2257672, 63141408, 78272812, 333022908, 658955069, 8721656068, 7170578414

Basic calculations (n = 21492990)

Multiplication

n×y
n×2 42985980
n×3 64478970
n×4 85971960
n×5 107464950

Division

n÷y
n÷2 10746495
n÷3 7164330
n÷3 5373247.5
n÷5 4298598

Exponentiation

ny
n2 461948619140100
n3 9.928657051692E+21
n4 2.1339652672545E+29
n5 4.5865294149447E+36

Nth Root

y√n
2√n 4636.0532783824
3√n 278.0346643454
4√n 68.088569366542
5√n 29.272469847689

Divisors of 21492990

1, 2, 5, 9, 10, 18, 19, 38, 45, 90, 95, 171, 190, 342, 855, 1710, 12569, 25138, 62845, 113121, 125690, 226242, 238811, 477622, 565605, 1131210, 1194055, 2149299, 2388110, 4298598, 10746495, 21492990

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 -21492989
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 21492990 can be divided by 32 positive divisors. The sum of these divisors (counting 21492990) is 1, the average is 0.03125.

Base conversion 21492990

Base System Value
2 Binary 1010001111111010011111110
3 Ternary 1111102221211200
4 Quaternary 1101333103332
5 Quinary 21000233430
6 Senary 2044400330
8 Octal 121772376
10 Decimal 21492990
12 Duodecimal 72460a6
16 Hexadecimal 147f4fe
20 Vigesimal 6e6c9a
36 Base36 cso3i

Cryptographic Hash Functions

md5 f3a5961468f0fae6a4bd19a8047677a0
sha1 ea212b92eb07f9fb0ec959f76cc386e848464ac4
sha256 022d13da06648753de888f4da17259c5fa62de28b1c7f116ec13d595f08d4ebd
sha512 7b936d160eb98232eab2a60a9de6592c6863e142ee8ff1be474e41786f620526fd0c3548be728095ed44a835c75c606dcb00e4cdc7d240468b2e8ceee12ade9d
ripemd-160 06826b6ea1ad6800dfd85dd8e4ef0d8634cc9bfc

21492990 as geometric shapes

Circle

Radius = n
Diameter 42985980
Circumference 135044438.97536
Area 1.4512543882265E+15

Sphere

Radius = n
Volume 4.1589061404811E+22
Surface area 5.805017552906E+15
Circumference 135044438.97536

Square

Length = n
Perimeter 85971960
Area 461948619140100
Diagonal 30395677.953949

Cube

Length = n
Surface area 2771691714840600
Volume 9.928657051692E+21
Space diagonal 37226950.68657

Equilateral Triangle

Length = n
Perimeter 64478970
Area 2.0002961970923E+14
Altitude 18613475.343285

Triangular Pyramid

Length = n
Surface area 2.0002961970923E+14
Volume 1.1701034548878E+21
Height 10131892.651316