81609660 (number)

81609660 is an even 8-digits composite number following 81609659 and preceding 81609661. In scientific notation, it is written as 8.1609660 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 48 positive divisors. There are 19768320 positive integers (up to 81609660) that are relatively prime to 81609660.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred nine thousand six hundred sixty

Notation

Scientific notation 8.1609660 × 10^7
Engineering notation 8.1609660 × 10^6

Prime Factorization of 81609660

Prime Factorization 2 × 2 × 11 × 15 × 99 × 1249

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40804830
Product of the distinct prime numbers

The prime factorization of 81609660 is 2 × 2 × 11 × 15 × 99 × 1249. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 7, 32, 19, 906, 298, 9354, 572, 77329, 31387, 764553, 123879, 9903818, 2020757, 26319758, 42982069, 305410414, 885854265, 2124770537, 3579853318

Basic calculations (n = 81609660)

Multiplication

n×y
n×2 163219320
n×3 244828980
n×4 326438640
n×5 408048300

Division

n÷y
n÷2 40804830
n÷3 27203220
n÷3 20402415
n÷5 16321932

Exponentiation

ny
n2 6660136605315600
n3 5.4353148391336E+23
n4 4.4357419601465E+31
n5 3.6199939321529E+39

Nth Root

y√n
2√n 9033.8065066726
3√n 433.75769211804
4√n 95.046338733654
5√n 38.225072139855

Divisors of 81609660

1, 2, 4, 11, 15, 22, 30, 44, 60, 99, 165, 198, 330, 396, 660, 1089, 1249, 1485, 2178, 2498, 2970, 4356, 4996, 5940, 13739, 16335, 18735, 27478, 32670, 37470, 54956, 65340, 74940, 123651, 206085, 247302, 412170, 494604, 824340, 1360161, 1854765, 2720322, 3709530, 5440644, 7419060, 20402415, 40804830, 81609660

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81609659
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81609660 can be divided by 48 positive divisors. The sum of these divisors (counting 81609660) is 1, the average is 0.020833333333333.

Base conversion 81609660

Base System Value
2 Binary 100110111010100001110111100
3 Ternary 12200120012102000
4 Quaternary 10313110032330
5 Quinary 131343002120
6 Senary 12033102300
8 Octal 467241674
10 Decimal 81609660
12 Duodecimal 233b7990
16 Hexadecimal 4dd43bc
20 Vigesimal 15a1430
36 Base36 1cl6f0

Cryptographic Hash Functions

md5 356752f4e1cc920081c941299f34bb4e
sha1 32499e96c677fb373b88a1b2525f73403d1adae2
sha256 9f982203fb2a439378b330e63501cc537234cac02669368f47889dc2d552404a
sha512 4ecefea14284732b1f7b03d97b2c614c578c3922fb923962e892edeae5072ca3b6aa7d064a8aa36aa61f026b6c0b849be86ba094d9f282aee915036e2132935a
ripemd-160 169ae4968fac5673c4ae8f7da06537de9c040008

81609660 as geometric shapes

Circle

Radius = n
Diameter 163219320
Circumference 512768616.63592
Area 2.0923436231164E+16

Sphere

Radius = n
Volume 2.2767393558093E+24
Surface area 8.3693744924656E+16
Circumference 512768616.63592

Square

Length = n
Perimeter 326438640
Area 6660136605315600
Diagonal 115413487.99266

Cube

Length = n
Surface area 39960819631893600
Volume 5.4353148391336E+23
Space diagonal 141352077.50842

Equilateral Triangle

Length = n
Perimeter 244828980
Area 2.883923746439E+15
Altitude 70676038.754211

Triangular Pyramid

Length = n
Surface area 2.883923746439E+15
Volume 6.4055799677254E+22
Height 38471162.664219