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

20157987 (number)

20157987 is an odd 8-digits composite number following 20157986 and preceding 20157988. In scientific notation, it is written as 2.0157987 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 12975200 positive integers (up to 20157987) that are relatively prime to 20157987.

Interesting facts

20157987 has 8 divisors, whose sum is 27804240
The reverse of 20157987 is 78975102
Previous prime number is 29

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	2.0157987 × 10^7
Engineering notation	2.0157987 × 10^6

Prime Factorization of 20157987

Prime Factorization 3 × 29 × 231701

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20157987	Product of the distinct prime numbers

The prime factorization of 20157987 is 3 × 29 × 231701. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 3, 33, 62, 970, 308, 2797, 735, 55040, 10991, 19410, 720309, 3590029, 2968055, 25893893, 53198158, 25809369, 580311545, 5931435485, 4994220608

Basic calculations (n = 20157987)

Multiplication

n×y

n×2	40315974
n×3	60473961
n×4	80631948
n×5	100789935

Division

n÷y

n÷2	10078993.5
n÷3	6719329
n÷3	5039496.75
n÷5	4031597.4

Exponentiation

n^y

n²	406344439892169
n³	8.1910859368686E+21
n⁴	1.6511580383128E+29
n⁵	3.3284022271255E+36

Nth Root

^y√n

²√n	4489.764693166
³√n	272.15462571397
⁴√n	67.005706422409
⁵√n	28.899440324549

Divisors of 20157987

1, 3, 29, 87, 231701, 695103, 6719329, 20157987

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	-20157986	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 20157987 can be divided by 8 positive divisors. The sum of these divisors (counting 20157987) is 1, the average is 0.125.

Base conversion 20157987

Base	System	Value
2	Binary	1001100111001011000100011
3	Ternary	1101221010120010
4	Quaternary	1030321120203
5	Quinary	20130023422
6	Senary	2000020003
8	Octal	114713043
10	Decimal	20157987
12	Duodecimal	6901603
16	Hexadecimal	1339623
20	Vigesimal	65jej7
36	Base36	c0203

Cryptographic Hash Functions

md5	11ada35dfb4ef5e4d75fa99659fc0176
sha1	fff448bfd767d762387620254fd345e882b3cea0
sha256	c4923f3efbe63ec62f34b4fb6b6abd6f57697f540306c59e9be1aa5e217e4e57
sha512	d3291ae73eb27f2bab605e06cd120e46ab02b25797fb35bd143363da0a937993d2f2edaf36b6dd94777e8a7910237e1df16fcca77bcd84c9660b09aaea1ae1fb
ripemd-160	6d9aaa66832eee1125abcf234948070ae3942aee

20157987 as geometric shapes

Circle

Radius = n

Diameter	40315974
Circumference	126656367.74072
Area	1.2765687071923E+15

Sphere

Radius = n

Volume	3.4310740538919E+22
Surface area	5.1062748287692E+15
Circumference	126656367.74072

Square

Length = n

Perimeter	80631948
Area	406344439892169
Diagonal	28507698.605541

Cube

Length = n

Surface area	2438066639353014
Volume	8.1910859368686E+21
Space diagonal	34914657.662313

Equilateral Triangle

Length = n

Perimeter	60473961
Area	1.7595230381659E+14
Altitude	17457328.831156

Triangular Pyramid

Length = n

Surface area	1.7595230381659E+14
Volume	9.6532873520693E+20
Height	9502566.2018468