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

20993987 (number)

20993987 is an odd 8-digits composite number following 20993986 and preceding 20993988. In scientific notation, it is written as 2.0993987 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 17994840 positive integers (up to 20993987) that are relatively prime to 20993987.

Interesting facts

20993987 has 4 divisors, whose sum is 23993136
The reverse of 20993987 is 78939902
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	twenty million nine hundred ninety-three thousand nine hundred eighty-seven

Notation

Scientific notation	2.0993987 × 10^7
Engineering notation	2.0993987 × 10^6

Prime Factorization of 20993987

Prime Factorization 7 × 2999141

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20993987	Product of the distinct prime numbers

The prime factorization of 20993987 is 7 × 2999141. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 9, 71, 27, 182, 9484, 5400, 59027, 59347, 250051, 965548, 4933097, 4008301, 42461408, 88152619, 125293640, 449850379, 8980537503, 5271447857

Basic calculations (n = 20993987)

Multiplication

n×y

n×2	41987974
n×3	62981961
n×4	83975948
n×5	104969935

Division

n÷y

n÷2	10496993.5
n÷3	6997995.6666667
n÷3	5248496.75
n÷5	4198797.4

Exponentiation

n^y

n²	440747490156169
n³	9.2530470786212E+21
n⁴	1.9425835007896E+29
n⁵	4.0782572761992E+36

Nth Root

^y√n

²√n	4581.9195758983
³√n	275.8660827259
⁴√n	67.689877942705
⁵√n	29.135265819501

Divisors of 20993987

1, 7, 2999141, 20993987

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20993986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20993987 can be divided by 4 positive divisors. The sum of these divisors (counting 20993987) is 1, the average is 0.25.

Base conversion 20993987

Base	System	Value
2	Binary	1010000000101011111000011
3	Ternary	1110111121100002
4	Quaternary	1100011133003
5	Quinary	20333301422
6	Senary	2025550215
8	Octal	120053703
10	Decimal	20993987
12	Duodecimal	704536b
16	Hexadecimal	14057c3
20	Vigesimal	6b44j7
36	Base36	chz2b

Cryptographic Hash Functions

md5	767ea4ce8c4fe651412fc30df31a9c33
sha1	10764051985424ce6452786339bda9e406a509e6
sha256	da4dad52ca9c0b901bb7271c158ae218ca06e0c00f02122f271039c49481c687
sha512	67f24386308ca5da54cb6acbf7dadf84317b2ddf6cae81e50ee7f44fc25fa4f742b766d5989addf795086b8748f04eb4096df1a6de8ac9308d68fec6cb2c625c
ripemd-160	501d1589637788a11e3b0199cf31bd18ce5011a0

20993987 as geometric shapes

Circle

Radius = n

Diameter	41987974
Circumference	131909110.65752
Area	1.3846490771628E+15

Sphere

Radius = n

Volume	3.8759072967356E+22
Surface area	5.538596308651E+15
Circumference	131909110.65752

Square

Length = n

Perimeter	83975948
Area	440747490156169
Diagonal	29689981.143684

Cube

Length = n

Surface area	2644484940937014
Volume	9.2530470786212E+21
Space diagonal	36362652.137441

Equilateral Triangle

Length = n

Perimeter	62981961
Area	1.9084926156474E+14
Altitude	18181326.06872

Triangular Pyramid

Length = n

Surface area	1.9084926156474E+14
Volume	1.0904820559886E+21
Height	9896660.3812282