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

81121142 (number)

81121142 is an even 8-digits composite number following 81121141 and preceding 81121143. In scientific notation, it is written as 8.1121142 × 10^7. The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors. There are 40520200 positive integers (up to 81121142) that are relatively prime to 81121142.

Interesting facts

81121142 has 8 divisors, whose sum is 121802832
The reverse of 81121142 is 24112118
Previous prime number is 1031

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2

Name

Name	eighty-one million one hundred twenty-one thousand one hundred forty-two

Notation

Scientific notation	8.1121142 × 10^7
Engineering notation	8.1121142 × 10^6

Prime Factorization of 81121142

Prime Factorization 2 × 1031 × 39341

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81121142	Product of the distinct prime numbers

The prime factorization of 81121142 is 2 × 1031 × 39341. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 6, 16, 7, 523, 177, 4742, 4206, 85957, 6390, 611338, 284955, 8638976, 376672, 21330999, 65155384, 395644164, 994887785, 2849321550, 6735895693

Basic calculations (n = 81121142)

Multiplication

n×y

n×2	162242284
n×3	243363426
n×4	324484568
n×5	405605710

Division

n÷y

n÷2	40560571
n÷3	27040380.666667
n÷3	20280285.5
n÷5	16224228.4

Exponentiation

n^y

n²	6580639679384164
n³	5.3382900588216E+23
n⁴	4.3304818589885E+31
n⁵	3.5129363381143E+39

Nth Root

^y√n

²√n	9006.7275966358
³√n	432.89046364611
⁴√n	94.903780728882
⁵√n	38.179198870817

Divisors of 81121142

1, 2, 1031, 2062, 39341, 78682, 40560571, 81121142

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	-81121141	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 81121142 can be divided by 8 positive divisors. The sum of these divisors (counting 81121142) is 1, the average is 0.125.

Base conversion 81121142

Base	System	Value
2	Binary	100110101011100111101110110
3	Ternary	12122122101021202
4	Quaternary	10311130331312
5	Quinary	131231334032
6	Senary	12014412502
8	Octal	465347566
10	Decimal	81121142
12	Duodecimal	23201132
16	Hexadecimal	4d5cf76
20	Vigesimal	15702h2
36	Base36	1caph2

Cryptographic Hash Functions

md5	97583f85450edcb2f1450f24d6487205
sha1	561d636518076180abbd7318be149d4bb193cedf
sha256	2d54e7d2093a46ee89c58772b6c41ca0e7136206d02f88a46f19b2ee3394c44d
sha512	e99e84caa2c6a14ab368885c0156a9f026d1090cf95cfb1e1fb1b269efa7aeff65c2d27ec2eeb777820c13aaa2261e8cfac3121f59b3a657c422b07e48f27b0d
ripemd-160	6c504e5669fa3943334afdcde156a4838be9cf6f

81121142 as geometric shapes

Circle

Radius = n

Diameter	162242284
Circumference	509699167.51603
Area	2.0673689272675E+16

Sphere

Radius = n

Volume	2.23609771087E+24
Surface area	8.2694757090699E+16
Circumference	509699167.51603

Square

Length = n

Perimeter	324484568
Area	6580639679384164
Diagonal	114722619.21159

Cube

Length = n

Surface area	39483838076304984
Volume	5.3382900588216E+23
Space diagonal	140505939.51201

Equilateral Triangle

Length = n

Perimeter	243363426
Area	2.8495005677493E+15
Altitude	70252969.756005

Triangular Pyramid

Length = n

Surface area	2.8495005677493E+15
Volume	6.2912351675558E+22
Height	38240873.070531