81887834 (number)

81887834 is an even 8-digits composite number following 81887833 and preceding 81887835. In scientific notation, it is written as 8.1887834 × 10^7. The sum of its digits is 47. It has a total of 5 prime factors and 32 positive divisors. There are 33067440 positive integers (up to 81887834) that are relatively prime to 81887834.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred eighty-seven thousand eight hundred thirty-four

Notation

Scientific notation 8.1887834 × 10^7
Engineering notation 8.1887834 × 10^6

Prime Factorization of 81887834

Prime Factorization 2 × 7 × 19 × 211 × 1459

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81887834
Product of the distinct prime numbers

The prime factorization of 81887834 is 2 × 7 × 19 × 211 × 1459. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 7, 66, 85, 400, 31, 7571, 7280, 48199, 90088, 373880, 782608, 9851642, 909130, 38058083, 42074518, 131298996, 980194814, 593310447, 911864022

Basic calculations (n = 81887834)

Multiplication

n×y
n×2 163775668
n×3 245663502
n×4 327551336
n×5 409439170

Division

n÷y
n÷2 40943917
n÷3 27295944.666667
n÷3 20471958.5
n÷5 16377566.8

Exponentiation

ny
n2 6705617357211556
n3 5.4910848101486E+23
n4 4.4965304141337E+31
n5 3.6821113612853E+39

Nth Root

y√n
2√n 9049.1896874803
3√n 434.2499674916
4√n 95.127228948815
5√n 38.251095414731

Divisors of 81887834

1, 2, 7, 14, 19, 38, 133, 211, 266, 422, 1459, 1477, 2918, 2954, 4009, 8018, 10213, 20426, 27721, 28063, 55442, 56126, 194047, 307849, 388094, 615698, 2154943, 4309886, 5849131, 11698262, 40943917, 81887834

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 -81887833
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 81887834 can be divided by 32 positive divisors. The sum of these divisors (counting 81887834) is 1, the average is 0.03125.

Base conversion 81887834

Base System Value
2 Binary 100111000011000001001011010
3 Ternary 12201002022222202
4 Quaternary 10320120021122
5 Quinary 131430402314
6 Senary 12043050202
8 Octal 470301132
10 Decimal 81887834
12 Duodecimal 23510962
16 Hexadecimal 4e1825a
20 Vigesimal 15bfjbe
36 Base36 1cr522

Cryptographic Hash Functions

md5 e7fbe18f462800bde164a6725ed4d9e2
sha1 b38d7b19eb377ec001a1b0d985e6558700600aea
sha256 cdfab588fdad649b3b6774cf3592007d65e1a67d239f1cba3318d65276230176
sha512 77ffb449e2b5615c2496e18df35d1163ca687efe2c6a07522955d45d3fd8310e1fd197e9ac59f297e9eaab733d52a66f52dc645d1492173f804fee34d20e5943
ripemd-160 73b2c87f832fe5b5c3a799c492a44216cf2685cf

81887834 as geometric shapes

Circle

Radius = n
Diameter 163775668
Circumference 514516435.42556
Area 2.10663182272E+16

Sphere

Radius = n
Volume 2.3001002266402E+24
Surface area 8.42652729088E+16
Circumference 514516435.42556

Square

Length = n
Perimeter 327551336
Area 6705617357211556
Diagonal 115806885.43616

Cube

Length = n
Surface area 40233704143269336
Volume 5.4910848101486E+23
Space diagonal 141833889.00977

Equilateral Triangle

Length = n
Perimeter 245663502
Area 2.9036174897015E+15
Altitude 70916944.504883

Triangular Pyramid

Length = n
Surface area 2.9036174897015E+15
Volume 6.4713055088775E+22
Height 38602295.145386