20921931 (number)

20921931 is an odd 8-digits composite number following 20921930 and preceding 20921932. In scientific notation, it is written as 2.0921931 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 12945600 positive integers (up to 20921931) that are relatively prime to 20921931.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921931 × 10^7
Engineering notation 2.0921931 × 10^6

Prime Factorization of 20921931

Prime Factorization 9 × 59 × 1271 × 31

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921931
Product of the distinct prime numbers

The prime factorization of 20921931 is 9 × 59 × 1271 × 31. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 14, 75, 658, 423, 3393, 3952, 72907, 80459, 473067, 828403, 7883328, 7743443, 51910074, 61187898, 663832658, 212574, 9660172257, 1304796671

Basic calculations (n = 20921931)

Multiplication

n×y
n×2 41843862
n×3 62765793
n×4 83687724
n×5 104609655

Division

n÷y
n÷2 10460965.5
n÷3 6973977
n÷3 5230482.75
n÷5 4184386.2

Exponentiation

ny
n2 437727196768761
n3 9.1580982076194E+21
n4 1.9160509879104E+29
n5 4.0087486561543E+36

Nth Root

y√n
2√n 4574.0497373772
3√n 275.55010984608
4√n 67.631721384105
5√n 29.115238572031

Divisors of 20921931

1, 9, 31, 59, 279, 531, 1271, 1829, 11439, 16461, 39401, 74989, 354609, 674901, 2324659, 20921931

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 -20921930
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 20921931 can be divided by 16 positive divisors. The sum of these divisors (counting 20921931) is 1, the average is 0.0625.

Base conversion 20921931

Base System Value
2 Binary 1001111110011111001001011
3 Ternary 1110100221111100
4 Quaternary 1033303321023
5 Quinary 20324000211
6 Senary 2024232443
8 Octal 117637113
10 Decimal 20921931
12 Duodecimal 700b723
16 Hexadecimal 13f3e4b
20 Vigesimal 6af4gb
36 Base36 cgfgr

Cryptographic Hash Functions

md5 7f2de2dd42c3e229b140695c7274c18d
sha1 a6bdf331965ff4aa011b5219dc583785b98debe7
sha256 2b13b08541f4e72fe0512a6283eb9944d9ecc649a5a8a8b503858ca6401d35e9
sha512 c4be0965348d5461b61f8225a6cb553013d0ad87ce31760ee853d7e25893b82b53f178edc052a0ea0fe4153ad52fbfff207cf88e90e14cf0a3d54a082046b6e1
ripemd-160 5b1fc22c3370c30e2a598d8dc1c751d31b44e24a

20921931 as geometric shapes

Circle

Radius = n
Diameter 41843862
Circumference 131456369.45703
Area 1.3751605456452E+15

Sphere

Radius = n
Volume 3.8361352066548E+22
Surface area 5.5006421825808E+15
Circumference 131456369.45703

Square

Length = n
Perimeter 83687724
Area 437727196768761
Diagonal 29588078.571234

Cube

Length = n
Surface area 2626363180612566
Volume 9.1580982076194E+21
Space diagonal 36237847.48445

Equilateral Triangle

Length = n
Perimeter 62765793
Area 1.8954143616455E+14
Altitude 18118923.742225

Triangular Pyramid

Length = n
Surface area 1.8954143616455E+14
Volume 1.07929222423E+21
Height 9862692.857078