81502904 (number)

81502904 is an even 8-digits composite number following 81502903 and preceding 81502905. In scientific notation, it is written as 8.1502904 × 10^7. The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors. There are 34929792 positive integers (up to 81502904) that are relatively prime to 81502904.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred two thousand nine hundred four

Notation

Scientific notation 8.1502904 × 10^7
Engineering notation 8.1502904 × 10^6

Prime Factorization of 81502904

Prime Factorization 2 × 2 × 2 × 7 × 1455409

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20375726
Product of the distinct prime numbers

The prime factorization of 81502904 is 2 × 2 × 2 × 7 × 1455409. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 10, 70, 77, 506, 748, 8862, 8332, 74661, 62252, 631633, 454297, 5387898, 3861214, 86711328, 24931601, 266692655, 799677897, 8499954110, 9650234796

Basic calculations (n = 81502904)

Multiplication

n×y
n×2 163005808
n×3 244508712
n×4 326011616
n×5 407514520

Division

n÷y
n÷2 40751452
n÷3 27167634.666667
n÷3 20375726
n÷5 16300580.8

Exponentiation

ny
n2 6642723360433216
n3 5.4140124434395E+23
n4 4.4125773643245E+31
n5 3.5963786931711E+39

Nth Root

y√n
2√n 9027.8958788856
3√n 433.5684725151
4√n 95.015240245371
5√n 38.215066234325

Divisors of 81502904

1, 2, 4, 7, 8, 14, 28, 56, 1455409, 2910818, 5821636, 10187863, 11643272, 20375726, 40751452, 81502904

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81502903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81502904 can be divided by 16 positive divisors. The sum of these divisors (counting 81502904) is 1, the average is 0.0625.

Base conversion 81502904

Base System Value
2 Binary 100110110111010001010111000
3 Ternary 12200100202222002
4 Quaternary 10312322022320
5 Quinary 131331043104
6 Senary 12030520132
8 Octal 466721270
10 Decimal 81502904
12 Duodecimal 23366048
16 Hexadecimal 4dba2b8
20 Vigesimal 1597h54
36 Base36 1ciw1k

Cryptographic Hash Functions

md5 acf0fddad53b5793903f2915218a0654
sha1 a419133e471a463c8fbf544b580226e275d06e1c
sha256 08637712432a144f41251e44e7c9981a758830bd44fa3b285c6b0d48947f4f30
sha512 382676e80e4777a2cc0fc185c843651d9ad87e97a48bf7a687cb96facfa06b28f23af62ee3a328c3d29b5bfb631b4d98b6d21a68b9c89784ca6a19381ad11e2f
ripemd-160 cdd558ae8ccc208d720c9f427863def8007c6cbe

81502904 as geometric shapes

Circle

Radius = n
Diameter 163005808
Circumference 512097848.90527
Area 2.0868730908966E+16

Sphere

Radius = n
Volume 2.2678162291671E+24
Surface area 8.3474923635865E+16
Circumference 512097848.90527

Square

Length = n
Perimeter 326011616
Area 6642723360433216
Diagonal 115262512.20959

Cube

Length = n
Surface area 39856340162599296
Volume 5.4140124434395E+23
Space diagonal 141167170.69241

Equilateral Triangle

Length = n
Perimeter 244508712
Area 2.8763835902237E+15
Altitude 70583585.346204

Triangular Pyramid

Length = n
Surface area 2.8763835902237E+15
Volume 6.3804748536407E+22
Height 38420837.403197