20921685 (number)

20921685 is an odd 8-digits composite number following 20921684 and preceding 20921686. In scientific notation, it is written as 2.0921685 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 10885760 positive integers (up to 20921685) that are relatively prime to 20921685.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921685 × 10^7
Engineering notation 2.0921685 × 10^6

Prime Factorization of 20921685

Prime Factorization 3 × 5 × 41 × 34019

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921685
Product of the distinct prime numbers

The prime factorization of 20921685 is 3 × 5 × 41 × 34019. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 2, 43, 51, 122, 935, 7249, 1911, 93019, 16274, 672110, 735971, 2162939, 8077709, 61569936, 48666413, 855699483, 628813251, 1330871341, 195947603

Basic calculations (n = 20921685)

Multiplication

n×y
n×2 41843370
n×3 62765055
n×4 83686740
n×5 104608425

Division

n÷y
n÷2 10460842.5
n÷3 6973895
n÷3 5230421.25
n÷5 4184337

Exponentiation

ny
n2 437716903239225
n3 9.1577751687465E+21
n4 1.9159608738134E+29
n5 4.0085129874248E+36

Nth Root

y√n
2√n 4574.0228464668
3√n 275.5490298694
4√n 67.631522579835
5√n 29.115170104332

Divisors of 20921685

1, 3, 5, 15, 41, 123, 205, 615, 34019, 102057, 170095, 510285, 1394779, 4184337, 6973895, 20921685

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 -20921684
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 20921685 can be divided by 16 positive divisors. The sum of these divisors (counting 20921685) is 1, the average is 0.0625.

Base conversion 20921685

Base System Value
2 Binary 1001111110011110101010101
3 Ternary 1110100221011020
4 Quaternary 1033303311111
5 Quinary 20323443220
6 Senary 2024231353
8 Octal 117636525
10 Decimal 20921685
12 Duodecimal 700b559
16 Hexadecimal 13f3d55
20 Vigesimal 6af445
36 Base36 cgf9x

Cryptographic Hash Functions

md5 b8bc368dfa935500effca7d78cacf462
sha1 9325beddecbc070ddd145f721886d9992dc6b5a0
sha256 a0dbe02acfcd01cbeac61ed7c6069686ebf5bff4539ef87945702a51205461f2
sha512 ad6d284bd00c7b943d1df150faed5bf3778274c771f722373ac342fccddf2f350321dbf2330860574740c40f500640d1d5e64824d7029c6f6420a0a72e40ad5b
ripemd-160 f9138c04a8108b579cf2677b15f7333fda9c562c

20921685 as geometric shapes

Circle

Radius = n
Diameter 41843370
Circumference 131454823.79344
Area 1.3751282075684E+15

Sphere

Radius = n
Volume 3.8359998924482E+22
Surface area 5.5005128302737E+15
Circumference 131454823.79344

Square

Length = n
Perimeter 83686740
Area 437716903239225
Diagonal 29587730.674698

Cube

Length = n
Surface area 2626301419435350
Volume 9.1577751687465E+21
Space diagonal 36237421.399952

Equilateral Triangle

Length = n
Perimeter 62765055
Area 1.8953697893551E+14
Altitude 18118710.699976

Triangular Pyramid

Length = n
Surface area 1.8953697893551E+14
Volume 1.0792541537337E+21
Height 9862576.8915659