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

20101987 (number)

20101987 is an odd 8-digits composite number following 20101986 and preceding 20101988. In scientific notation, it is written as 2.0101987 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 20081776 positive integers (up to 20101987) that are relatively prime to 20101987.

Interesting facts

20101987 has 4 divisors, whose sum is 20122200
The reverse of 20101987 is 78910102
Previous prime number is 1049

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

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

Notation

Scientific notation	2.0101987 × 10^7
Engineering notation	2.0101987 × 10^6

Prime Factorization of 20101987

Prime Factorization 1049 × 19163

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20101987	Product of the distinct prime numbers

The prime factorization of 20101987 is 1049 × 19163. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 5, 93, 94, 308, 447, 7245, 3967, 49369, 81288, 608199, 779755, 5424949, 6616648, 84083029, 8965626, 876899198, 428944666, 8499910559, 1634153539

Basic calculations (n = 20101987)

Multiplication

n×y

n×2	40203974
n×3	60305961
n×4	80407948
n×5	100509935

Division

n÷y

n÷2	10050993.5
n÷3	6700662.3333333
n÷3	5025496.75
n÷5	4020397.4

Exponentiation

n^y

n²	404089881348169
n³	8.1230095416924E+21
n⁴	1.6328863220798E+29
n⁵	3.2824259618925E+36

Nth Root

^y√n

²√n	4483.5239488599
³√n	271.90237178947
⁴√n	66.959121476165
⁵√n	28.883365604106

Divisors of 20101987

1, 1049, 19163, 20101987

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	-20101986	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 20101987 can be divided by 4 positive divisors. The sum of these divisors (counting 20101987) is 1, the average is 0.25.

Base conversion 20101987

Base	System	Value
2	Binary	1001100101011101101100011
3	Ternary	1101211021202001
4	Quaternary	1030223231203
5	Quinary	20121230422
6	Senary	1554504431
8	Octal	114535543
10	Decimal	20101987
12	Duodecimal	6895117
16	Hexadecimal	132bb63
20	Vigesimal	65cej7
36	Base36	byusj

Cryptographic Hash Functions

md5	ac3ed31d352dcb80f2509df9851f333b
sha1	5fc60942b90fe9afd39bea8a9b57b4afc65094f5
sha256	77c8cbee76b9a6181533642fceee063c1f8fc5a5e033ec0c78f1ca36d2e307f1
sha512	86e5de2aac691cf041dee4c798bbda6af9c46a0b9072aa17737afadfa80f1866221ad8d06ae69567721848b0aefab167bf57377f2fc07b010379b9365400b1ee
ripemd-160	2e8105a76cd836cf87b98b358dd56056a271a152

20101987 as geometric shapes

Circle

Radius = n

Diameter	40203974
Circumference	126304509.36352
Area	1.2694858026334E+15

Sphere

Radius = n

Volume	3.4025582801628E+22
Surface area	5.0779432105335E+15
Circumference	126304509.36352

Square

Length = n

Perimeter	80407948
Area	404089881348169
Diagonal	28428502.646048

Cube

Length = n

Surface area	2424539288089014
Volume	8.1230095416924E+21
Space diagonal	34817662.817089

Equilateral Triangle

Length = n

Perimeter	60305961
Area	1.7497605132988E+14
Altitude	17408831.408545

Triangular Pyramid

Length = n

Surface area	1.7497605132988E+14
Volume	9.5730585509563E+20
Height	9476167.5486825