81872007 (number)

81872007 is an odd 8-digits composite number following 81872006 and preceding 81872008. In scientific notation, it is written as 8.1872007 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 44126208 positive integers (up to 81872007) that are relatively prime to 81872007.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred seventy-two thousand seven

Notation

Scientific notation 8.1872007 × 10^7
Engineering notation 8.1872007 × 10^6

Prime Factorization of 81872007

Prime Factorization 3 × 7 × 19 × 457 × 449

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81872007
Product of the distinct prime numbers

The prime factorization of 81872007 is 3 × 7 × 19 × 457 × 449. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 51, 18, 852, 799, 5561, 9830, 66242, 56598, 605584, 9005, 9780819, 360045, 49948761, 52051903, 793772802, 560017671, 8977394763, 7225177986

Basic calculations (n = 81872007)

Multiplication

n×y
n×2 163744014
n×3 245616021
n×4 327488028
n×5 409360035

Division

n÷y
n÷2 40936003.5
n÷3 27290669
n÷3 20468001.75
n÷5 16374401.4

Exponentiation

ny
n2 6703025530208049
n3 5.4879015313037E+23
n4 4.4930551258621E+31
n5 3.6785544071597E+39

Nth Root

y√n
2√n 9048.3151470315
3√n 434.22198890701
4√n 95.122632149408
5√n 38.249616692272

Divisors of 81872007

1, 3, 7, 19, 21, 57, 133, 399, 449, 457, 1347, 1371, 3143, 3199, 8531, 8683, 9429, 9597, 25593, 26049, 59717, 60781, 179151, 182343, 205193, 615579, 1436351, 3898667, 4309053, 11696001, 27290669, 81872007

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81872006
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81872007 can be divided by 32 positive divisors. The sum of these divisors (counting 81872007) is 1, the average is 0.03125.

Base conversion 81872007

Base System Value
2 Binary 100111000010100010010000111
3 Ternary 12201001112021120
4 Quaternary 10320110102013
5 Quinary 131424401012
6 Senary 12042445023
8 Octal 470242207
10 Decimal 81872007
12 Duodecimal 23503773
16 Hexadecimal 4e14487
20 Vigesimal 15be007
36 Base36 1cqsuf

Cryptographic Hash Functions

md5 9a785158bf3f516de5f23242538ab63d
sha1 c5ba8dc3ec6cb64ae168226233b1cdc9ba1c33cc
sha256 a6e1ea135519da6286fdecb0c24e07ca9eaf0d595fa458b0ea792931579d54b1
sha512 e367eb8eddd9c595ef8a62f1cb020003b2378868d451d8e15e1fdad9a178c4ede5ed62c36bd312545c1626cea520461d4f2d9c490d864fff6cf6d734e60558aa
ripemd-160 bff00dc9c7ad98ea2b1eab65ef4164f0b878a20e

81872007 as geometric shapes

Circle

Radius = n
Diameter 163744014
Circumference 514416991.4517
Area 2.1058175762526E+16

Sphere

Radius = n
Volume 2.2987668179157E+24
Surface area 8.4232703050106E+16
Circumference 514416991.4517

Square

Length = n
Perimeter 327488028
Area 6703025530208049
Diagonal 115784502.6781

Cube

Length = n
Surface area 40218153181248294
Volume 5.4879015313037E+23
Space diagonal 141806475.84163

Equilateral Triangle

Length = n
Perimeter 245616021
Area 2.9024951956879E+15
Altitude 70903237.920817

Triangular Pyramid

Length = n
Surface area 2.9024951956879E+15
Volume 6.4675539787815E+22
Height 38594834.226035