20921649 (number)

20921649 is an odd 8-digits composite number following 20921648 and preceding 20921650. In scientific notation, it is written as 2.0921649 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 11802960 positive integers (up to 20921649) that are relatively prime to 20921649.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand six hundred forty-nine

Notation

Scientific notation 2.0921649 × 10^7
Engineering notation 2.0921649 × 10^6

Prime Factorization of 20921649

Prime Factorization 7 × 3 × 79 × 12611

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921649
Product of the distinct prime numbers

The prime factorization of 20921649 is 7 × 3 × 79 × 12611. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 8, 69, 175, 713, 6879, 6165, 31377, 69077, 596368, 308519, 4246795, 8760381, 30557012, 58613009, 895063153, 89315628, 136821525, 3261591246

Basic calculations (n = 20921649)

Multiplication

n×y
n×2 41843298
n×3 62764947
n×4 83686596
n×5 104608245

Division

n÷y
n÷2 10460824.5
n÷3 6973883
n÷3 5230412.25
n÷5 4184329.8

Exponentiation

ny
n2 437715396879201
n3 9.1577278954023E+21
n4 1.9159476866512E+29
n5 4.0084785002478E+36

Nth Root

y√n
2√n 4574.0189111983
3√n 275.54887182333
4√n 67.631493486381
5√n 29.115160084614

Divisors of 20921649

1, 3, 7, 21, 79, 237, 553, 1659, 12611, 37833, 88277, 264831, 996269, 2988807, 6973883, 20921649

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 -20921648
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 20921649 can be divided by 16 positive divisors. The sum of these divisors (counting 20921649) is 1, the average is 0.0625.

Base conversion 20921649

Base System Value
2 Binary 1001111110011110100110001
3 Ternary 1110100221002220
4 Quaternary 1033303310301
5 Quinary 20323443044
6 Senary 2024231253
8 Octal 117636461
10 Decimal 20921649
12 Duodecimal 700b529
16 Hexadecimal 13f3d31
20 Vigesimal 6af429
36 Base36 cgf8x

Cryptographic Hash Functions

md5 a16f407f82a97d8d1bd9703178ada151
sha1 41245c9c9ac295175fe4b96d4723e3b3ce6afef1
sha256 c7a4f3b34ae531dc50ed748aa3498b26e30b6931e3f7bfc54e747c7ccaf6da6e
sha512 e63ed3cadbfadbf83782ed54933ed615cbdda10637d5fe6adb501fd98bd0b2fa1ddb80ab36d153d4dab16ed1a81e89518159c2838a74cb7049b6a8bd823cf9aa
ripemd-160 b5f193fc826cc81e1f70c1187376635321e699c6

20921649 as geometric shapes

Circle

Radius = n
Diameter 41843298
Circumference 131454597.59877
Area 1.3751234751988E+15

Sphere

Radius = n
Volume 3.835980090636E+22
Surface area 5.5004939007954E+15
Circumference 131454597.59877

Square

Length = n
Perimeter 83686596
Area 437715396879201
Diagonal 29587679.76301

Cube

Length = n
Surface area 2626292381275206
Volume 9.1577278954023E+21
Space diagonal 36237359.046123

Equilateral Triangle

Length = n
Perimeter 62764947
Area 1.8953632666249E+14
Altitude 18118679.523061

Triangular Pyramid

Length = n
Surface area 1.8953632666249E+14
Volume 1.0792485825167E+21
Height 9862559.9210032