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

81123907 (number)

81123907 is an odd 8-digits composite number following 81123906 and preceding 81123908. In scientific notation, it is written as 8.1123907 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 80320600 positive integers (up to 81123907) that are relatively prime to 81123907.

Interesting facts

81123907 has 4 divisors, whose sum is 81927216
The reverse of 81123907 is 70932118
Previous prime number is 101

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	8.1123907 × 10^7
Engineering notation	8.1123907 × 10^6

Prime Factorization of 81123907

Prime Factorization 101 × 803207

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81123907	Product of the distinct prime numbers

The prime factorization of 81123907 is 101 × 803207. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 85, 65, 790, 769, 9919, 8489, 44938, 66744, 316196, 812941, 9795762, 7744004, 99002055, 32024330, 947833227, 991844117, 966054159, 7378913900

Basic calculations (n = 81123907)

Multiplication

n×y

n×2	162247814
n×3	243371721
n×4	324495628
n×5	405619535

Division

n÷y

n÷2	40561953.5
n÷3	27041302.333333
n÷3	20280976.75
n÷5	16224781.4

Exponentiation

n^y

n²	6581088286944649
n³	5.3388359414889E+23
n⁴	4.331072304056E+31
n⁵	3.5135350680452E+39

Nth Root

^y√n

²√n	9006.8810916987
³√n	432.89538192226
⁴√n	94.904589413256
⁵√n	38.179459133537

Divisors of 81123907

1, 101, 803207, 81123907

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	-81123906	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 81123907 can be divided by 4 positive divisors. The sum of these divisors (counting 81123907) is 1, the average is 0.25.

Base conversion 81123907

Base	System	Value
2	Binary	100110101011101101001000011
3	Ternary	12122122112002011
4	Quaternary	10311131221003
5	Quinary	131231431112
6	Senary	12014433351
8	Octal	465355103
10	Decimal	81123907
12	Duodecimal	23202857
16	Hexadecimal	4d5da43
20	Vigesimal	15709f7
36	Base36	1carlv

Cryptographic Hash Functions

md5	56df2ad579a7397c10a22588781a406a
sha1	93b6519ad862a82de4e85aade13359cdd3d40340
sha256	356057d13f960f9f2252c94ef9c93889dd86d8fa31edf12f12496fca6d37332c
sha512	5fd130f0b16a7a86fa6a1ca760f4b9d5b13ed82af40ec96942dc6c3a1cefa0b918ae1d214badb73c898bf07bf74165e3d8feb21b4d6fb9409014b407935a5f57
ripemd-160	7085f66e24248cb19175825e29ddaad5a4ce2fd1

81123907 as geometric shapes

Circle

Radius = n

Diameter	162247814
Circumference	509716540.5234
Area	2.0675098614891E+16

Sphere

Radius = n

Volume	2.236326369667E+24
Surface area	8.2700394459565E+16
Circumference	509716540.5234

Square

Length = n

Perimeter	324495628
Area	6581088286944649
Diagonal	114726529.51209

Cube

Length = n

Surface area	39486529721667894
Volume	5.3388359414889E+23
Space diagonal	140510728.63249

Equilateral Triangle

Length = n

Perimeter	243371721
Area	2.8496948205211E+15
Altitude	70255364.316246

Triangular Pyramid

Length = n

Surface area	2.8496948205211E+15
Volume	6.2918784964487E+22
Height	38242176.504031