20921980 (number)

20921980 is an even 8-digits composite number following 20921979 and preceding 20921981. In scientific notation, it is written as 2.0921980 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 8301888 positive integers (up to 20921980) that are relatively prime to 20921980.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921980 × 10^7
Engineering notation 2.0921980 × 10^6

Prime Factorization of 20921980

Prime Factorization 2 × 2 × 5 × 127 × 8237

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10460990
Product of the distinct prime numbers

The prime factorization of 20921980 is 2 × 2 × 5 × 127 × 8237. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 5, 79, 90, 960, 622, 186, 7471, 1298, 70940, 402783, 992203, 9565773, 5247084, 9035886, 80087077, 653474594, 830129149, 1954231159, 1309196709

Basic calculations (n = 20921980)

Multiplication

n×y
n×2 41843960
n×3 62765940
n×4 83687920
n×5 104609900

Division

n÷y
n÷2 10460990
n÷3 6973993.3333333
n÷3 5230495
n÷5 4184396

Exponentiation

ny
n2 437729247120400
n3 9.1581625536681E+21
n4 1.9160689378459E+29
n5 4.0087955996234E+36

Nth Root

y√n
2√n 4574.0550936778
3√n 275.55032496238
4√n 67.63176098312
5√n 29.115252209829

Divisors of 20921980

1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 8237, 16474, 32948, 41185, 82370, 164740, 1046099, 2092198, 4184396, 5230495, 10460990, 20921980

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921980 can be divided by 24 positive divisors. The sum of these divisors (counting 20921980) is 1, the average is 0.041666666666667.

Base conversion 20921980

Base System Value
2 Binary 1001111110011111001111100
3 Ternary 1110100221120011
4 Quaternary 1033303321330
5 Quinary 20324000410
6 Senary 2024233004
8 Octal 117637174
10 Decimal 20921980
12 Duodecimal 700b764
16 Hexadecimal 13f3e7c
20 Vigesimal 6af4j0
36 Base36 cgfi4

Cryptographic Hash Functions

md5 db27033eb60f74be0e5eb2b8e5b98a6e
sha1 0a2822e6433fbc26130a297615923a1957ce59b5
sha256 6985b06fc90675ba1d821bdc781edc7cd975e7c55e1bc58d59f3e7e1f89e779a
sha512 6f0e3c4eb76b9147027feccf5ab81da6a759e6d18882409641c8f47b1c388c41f5d7e172c85e3e2219a330a2580a8915f948f608e6e0b8e1fc37820ff946580d
ripemd-160 6c82a3c675e88c94088b8010a0aee9321c86a760

20921980 as geometric shapes

Circle

Radius = n
Diameter 41843960
Circumference 131456677.33311
Area 1.3751669870148E+15

Sphere

Radius = n
Volume 3.8361621598646E+22
Surface area 5.5006679480594E+15
Circumference 131456677.33311

Square

Length = n
Perimeter 83687920
Area 437729247120400
Diagonal 29588147.867699

Cube

Length = n
Surface area 2626375482722400
Volume 9.1581625536681E+21
Space diagonal 36237932.35494

Equilateral Triangle

Length = n
Perimeter 62765940
Area 1.8954232399285E+14
Altitude 18118966.17747

Triangular Pyramid

Length = n
Surface area 1.8954232399285E+14
Volume 1.0792998074846E+21
Height 9862715.9558995