20921968 (number)

20921968 is an even 8-digits composite number following 20921967 and preceding 20921969. In scientific notation, it is written as 2.0921968 × 10^7. The sum of its digits is 37. It has a total of 6 prime factors and 20 positive divisors. There are 9845504 positive integers (up to 20921968) that are relatively prime to 20921968.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand nine hundred sixty-eight

Notation

Scientific notation 2.0921968 × 10^7
Engineering notation 2.0921968 × 10^6

Prime Factorization of 20921968

Prime Factorization 2 × 2 × 2 × 2 × 17 × 76919

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2615246
Product of the distinct prime numbers

The prime factorization of 20921968 is 2 × 2 × 2 × 2 × 17 × 76919. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 7, 13, 28, 802, 511, 5237, 6816, 7848, 53110, 622533, 865873, 6368829, 8768176, 77288702, 31725188, 417282345, 980841254, 478407417, 4740578328

Basic calculations (n = 20921968)

Multiplication

n×y
n×2 41843936
n×3 62765904
n×4 83687872
n×5 104609840

Division

n÷y
n÷2 10460984
n÷3 6973989.3333333
n÷3 5230492
n÷5 4184393.6

Exponentiation

ny
n2 437728744993024
n3 9.1581467954242E+21
n4 1.9160645419317E+29
n5 4.0087841032229E+36

Nth Root

y√n
2√n 4574.0537819313
3√n 275.55027228087
4√n 67.631751285408
5√n 29.115248869962

Divisors of 20921968

1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76919, 153838, 307676, 615352, 1230704, 1307623, 2615246, 5230492, 10460984, 20921968

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921968 can be divided by 20 positive divisors. The sum of these divisors (counting 20921968) is 1, the average is 0.05.

Base conversion 20921968

Base System Value
2 Binary 1001111110011111001110000
3 Ternary 1110100221112201
4 Quaternary 1033303321300
5 Quinary 20324000333
6 Senary 2024232544
8 Octal 117637160
10 Decimal 20921968
12 Duodecimal 700b754
16 Hexadecimal 13f3e70
20 Vigesimal 6af4i8
36 Base36 cgfhs

Cryptographic Hash Functions

md5 fbd78ae8f364fb668ad5d0c993577236
sha1 46ff4d717b7e5b5257abb444df0d3f8440a97a97
sha256 58514bc4423bc7df0cefdec9cd6ae4aae1410ee639f539ba5c756bf15671d004
sha512 6c0f9af9a68c66296915904d65c4a6875fefb8df5f5bea237f222901f85cb2968122d13b91ad03ffa7f990d8cb8e699bbbfe99b1746385f2ca08faea4447a43c
ripemd-160 aedfc3c270222efb69b500e428f20ef40ee9dc84

20921968 as geometric shapes

Circle

Radius = n
Diameter 41843936
Circumference 131456601.93488
Area 1.3751654095352E+15

Sphere

Radius = n
Volume 3.8361555590669E+22
Surface area 5.5006616381407E+15
Circumference 131456601.93488

Square

Length = n
Perimeter 83687872
Area 437728744993024
Diagonal 29588130.897136

Cube

Length = n
Surface area 2626372469958144
Volume 9.1581467954242E+21
Space diagonal 36237911.57033

Equilateral Triangle

Length = n
Perimeter 62765904
Area 1.8954210656532E+14
Altitude 18118955.785165

Triangular Pyramid

Length = n
Surface area 1.8954210656532E+14
Volume 1.0792979503577E+21
Height 9862710.2990453