81072012 (number)

81072012 is an even 8-digits composite number following 81072011 and preceding 81072013. In scientific notation, it is written as 8.1072012 × 10^7. The sum of its digits is 21. It has a total of 7 prime factors and 96 positive divisors. There are 21632832 positive integers (up to 81072012) that are relatively prime to 81072012.

Interesting facts

Basic properties

Name

Name eighty-one million seventy-two thousand twelve

Notation

Scientific notation 8.1072012 × 10^7
Engineering notation 8.1072012 × 10^6

Prime Factorization of 81072012

Prime Factorization 2 × 2 × 3 × 19 × 7 × 79 × 643

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 40536006
Product of the distinct prime numbers

The prime factorization of 81072012 is 2 × 2 × 3 × 19 × 7 × 79 × 643. Since it has a total of 7 prime factors.

Most popular turbo-numbers

4, 5, 12, 2, 164, 43, 5075, 9771, 2293, 47603, 423172, 68600, 8076225, 483187, 3293580, 25730749, 653437890, 598605273, 6571127666, 9690070835

Basic calculations (n = 81072012)

Multiplication

n×y
n×2 162144024
n×3 243216036
n×4 324288048
n×5 405360060

Division

n÷y
n÷2 40536006
n÷3 27024004
n÷3 20268003
n÷5 16214402.4

Exponentiation

ny
n2 6572671129728144
n3 5.3285967270137E+23
n4 4.3200005779562E+31
n5 3.5023113869607E+39

Nth Root

y√n
2√n 9003.9997778765
3√n 432.80305444161
4√n 94.889408143778
5√n 38.174573199708

Divisors of 81072012

1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 79, 84, 114, 133, 158, 228, 237, 266, 316, 399, 474, 532, 553, 643, 798, 948, 1106, 1286, 1501, 1596, 1659, 1929, 2212, 2572, 3002, 3318, 3858, 4501, 4503, 6004, 6636, 7716, 9002, 9006, 10507, 12217, 13503, 18004, 18012, 21014, 24434, 27006, 31521, 36651, 42028, 48868, 50797, 54012, 63042, 73302, 85519, 101594, 126084, 146604, 152391, 171038, 203188, 256557, 304782, 342076, 355579, 513114, 609564, 711158, 965143, 1026228, 1066737, 1422316, 1930286, 2133474, 2895429, 3860572, 4266948, 5790858, 6756001, 11581716, 13512002, 20268003, 27024004, 40536006, 81072012

96 divisors

τ Total Divisors 96
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81072011
Sum of the proper positive divisors of n
A Arithmetic Mean 0.010416666666667
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 96
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81072012 can be divided by 96 positive divisors. The sum of these divisors (counting 81072012) is 1, the average is 0.010416666666667.

Base conversion 81072012

Base System Value
2 Binary 100110101010000111110001100
3 Ternary 12122112212220010
4 Quaternary 10311100332030
5 Quinary 131223301022
6 Senary 12013353220
8 Octal 465207614
10 Decimal 81072012
12 Duodecimal 23198810
16 Hexadecimal 4d50f8c
20 Vigesimal 156e00c
36 Base36 1c9nkc

Cryptographic Hash Functions

md5 872ac4acfbf8770f215b4d817032dce8
sha1 0d80b2be06fc10ce8894a952da297f9e1688d693
sha256 1314708f4f4453eb45ff51549c47f01f499cb26dca91a1fbe0ea36c134aabf05
sha512 fbe4ec193b150988f66a5e080ec75055929a2ce897a6ae26bc4ca122ab271f98fee8bf99d903ef595390407ab85587eca54e74a543ca61fc979392ef307b613a
ripemd-160 bbc20dc88bda43e1b4cfd66e257cd19af52b8186

81072012 as geometric shapes

Circle

Radius = n
Diameter 162144024
Circumference 509390474.62189
Area 2.0648655335616E+16

Sphere

Radius = n
Volume 2.2320373775372E+24
Surface area 8.2594621342463E+16
Circumference 509390474.62189

Square

Length = n
Perimeter 324288048
Area 6572671129728144
Diagonal 114653138.89927

Cube

Length = n
Surface area 39436026778368864
Volume 5.3285967270137E+23
Space diagonal 140420843.85583

Equilateral Triangle

Length = n
Perimeter 243216036
Area 2.8460500845326E+15
Altitude 70210421.927917

Triangular Pyramid

Length = n
Surface area 2.8460500845326E+15
Volume 6.2798114664664E+22
Height 38217712.966425