81649862 (number)

81649862 is an even 8-digits composite number following 81649861 and preceding 81649863. In scientific notation, it is written as 8.1649862 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 32 positive divisors. There are 32687424 positive integers (up to 81649862) that are relatively prime to 81649862.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty-nine thousand eight hundred sixty-two

Notation

Scientific notation 8.1649862 × 10^7
Engineering notation 8.1649862 × 10^6

Prime Factorization of 81649862

Prime Factorization 2 × 7 × 43 × 23 × 5897

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81649862
Product of the distinct prime numbers

The prime factorization of 81649862 is 2 × 7 × 43 × 23 × 5897. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 95, 32, 760, 570, 8144, 421, 50713, 57111, 870772, 707728, 9715687, 5236181, 53774164, 75906214, 754743792, 991453780, 2265976563, 823958587

Basic calculations (n = 81649862)

Multiplication

n×y
n×2 163299724
n×3 244949586
n×4 326599448
n×5 408249310

Division

n÷y
n÷2 40824931
n÷3 27216620.666667
n÷3 20412465.5
n÷5 16329972.4

Exponentiation

ny
n2 6666699964619044
n3 5.4433513210655E+23
n4 4.4444888418252E+31
n5 3.6289190059556E+39

Nth Root

y√n
2√n 9036.0313191135
3√n 433.82890535488
4√n 95.058041843463
5√n 38.228837433413

Divisors of 81649862

1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1978, 5897, 6923, 11794, 13846, 41279, 82558, 135631, 253571, 271262, 507142, 949417, 1774997, 1898834, 3549994, 5832133, 11664266, 40824931, 81649862

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 -81649861
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 81649862 can be divided by 32 positive divisors. The sum of these divisors (counting 81649862) is 1, the average is 0.03125.

Base conversion 81649862

Base System Value
2 Binary 100110111011110000011000110
3 Ternary 12200122020112222
4 Quaternary 10313132003012
5 Quinary 131400243422
6 Senary 12034012342
8 Octal 467360306
10 Decimal 81649862
12 Duodecimal 234170b2
16 Hexadecimal 4dde0c6
20 Vigesimal 15a64d2
36 Base36 1cm1fq

Cryptographic Hash Functions

md5 cd5a973c79f5101f150646be76313c77
sha1 f2939f00b4c58d2f8d1c58446d666f959b129230
sha256 fd2c1f3454ea13bebb1bb5a232c77fa9230528011fc392f973c9b22645e35504
sha512 52e4e8ad564ca42c48910e854e5b88c7c584754af8eafb5ed7ebe165b2d10a41b6d64168b05f39a9cd6bb501abf71374188e308bd8d916d9bb90f1f786aad42b
ripemd-160 3a12a78e840ab13e279fdc97d150ed7aea4dc8b9

81649862 as geometric shapes

Circle

Radius = n
Diameter 163299724
Circumference 513021213.25164
Area 2.0944055632535E+16

Sphere

Radius = n
Volume 2.280105669489E+24
Surface area 8.3776222530138E+16
Circumference 513021213.25164

Square

Length = n
Perimeter 326599448
Area 6666699964619044
Diagonal 115470342.20629

Cube

Length = n
Surface area 40000199787714264
Volume 5.4433513210655E+23
Space diagonal 141421709.41499

Equilateral Triangle

Length = n
Perimeter 244949586
Area 2.8867657643845E+15
Altitude 70710854.707494

Triangular Pyramid

Length = n
Surface area 2.8867657643845E+15
Volume 6.4150510525103E+22
Height 38490114.068764