Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20731921 (number)

20731921 is an odd 8-digits composite number following 20731920 and preceding 20731922. In scientific notation, it is written as 2.0731921 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 17670960 positive integers (up to 20731921) that are relatively prime to 20731921.

Interesting facts

20731921 has 8 divisors, whose sum is 23825984
The reverse of 20731921 is 12913702
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

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

Notation

Scientific notation	2.0731921 × 10^7
Engineering notation	2.0731921 × 10^6

Prime Factorization of 20731921

Prime Factorization 181 × 7 × 16363

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20731921	Product of the distinct prime numbers

The prime factorization of 20731921 is 181 × 7 × 16363. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 10, 37, 14, 474, 263, 3692, 8847, 63904, 54654, 140440, 66951, 8369863, 5902742, 50444249, 8108327, 163945407, 287783890, 8891293252, 2279695646

Basic calculations (n = 20731921)

Multiplication

n×y

n×2	41463842
n×3	62195763
n×4	82927684
n×5	103659605

Division

n÷y

n÷2	10365960.5
n÷3	6910640.3333333
n÷3	5182980.25
n÷5	4146384.2

Exponentiation

n^y

n²	429812548350241
n³	8.9108397972059E+21
n⁴	1.8473882671933E+29
n⁵	3.8299907611778E+36

Nth Root

^y√n

²√n	4553.2319290807
³√n	274.71340279769
⁴√n	67.477640215709
⁵√n	29.062161313482

Divisors of 20731921

1, 7, 181, 1267, 16363, 114541, 2961703, 20731921

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20731920	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20731921 can be divided by 8 positive divisors. The sum of these divisors (counting 20731921) is 1, the average is 0.125.

Base conversion 20731921

Base	System	Value
2	Binary	1001111000101100000010001
3	Ternary	1110000021211221
4	Quaternary	1033011200101
5	Quinary	20301410141
6	Senary	2020205041
8	Octal	117054021
10	Decimal	20731921
12	Duodecimal	6b39781
16	Hexadecimal	13c5811
20	Vigesimal	69b9g1
36	Base36	cccup

Cryptographic Hash Functions

md5	04b839abefe1652a0e64d5e68904af6b
sha1	ea5e36c9a3bdc1841312fbce679db67cfd2b730b
sha256	cba9d2f65907f6ebc9a841b258c9fd565b88b0fd29b2dcc03328ac76418b0067
sha512	427692ae73fa58cf3c8d25d8704c49ae9a3229dc188434ebd08fe1d5bfe59737bd7cb149b59ca5cde57cce73c766d8817b390e2936d3b0cc2c1777a32e20f0eb
ripemd-160	c8214c1382675fc5f74b749ed7f331881171ea50

20731921 as geometric shapes

Circle

Radius = n

Diameter	41463842
Circumference	130262501.41681
Area	1.3502959443178E+15

Sphere

Radius = n

Volume	3.7325638458957E+22
Surface area	5.4011837772713E+15
Circumference	130262501.41681

Square

Length = n

Perimeter	82927684
Area	429812548350241
Diagonal	29319363.852248

Cube

Length = n

Surface area	2578875290101446
Volume	8.9108397972059E+21
Space diagonal	35908740.510504

Equilateral Triangle

Length = n

Perimeter	62195763
Area	1.8611429286832E+14
Altitude	17954370.255252

Triangular Pyramid

Length = n

Surface area	1.8611429286832E+14
Volume	1.0501525411119E+21
Height	9773121.2840825