81445827 (number)

81445827 is an odd 8-digits composite number following 81445826 and preceding 81445828. In scientific notation, it is written as 8.1445827 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 49913472 positive integers (up to 81445827) that are relatively prime to 81445827.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-five thousand eight hundred twenty-seven

Notation

Scientific notation 8.1445827 × 10^7
Engineering notation 8.1445827 × 10^6

Prime Factorization of 81445827

Prime Factorization 3 × 43 × 17 × 37139

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81445827
Product of the distinct prime numbers

The prime factorization of 81445827 is 3 × 43 × 17 × 37139. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 77, 26, 360, 393, 4936, 5240, 32515, 50879, 785633, 924163, 5285785, 7087083, 98615944, 57931693, 581009914, 429550424, 5024235265, 7364938109

Basic calculations (n = 81445827)

Multiplication

n×y
n×2 162891654
n×3 244337481
n×4 325783308
n×5 407229135

Division

n÷y
n÷2 40722913.5
n÷3 27148609
n÷3 20361456.75
n÷5 16289165.4

Exponentiation

ny
n2 6633422735713929
n3 5.4026460055082E+23
n4 4.4002297190686E+31
n5 3.5838034845952E+39

Nth Root

y√n
2√n 9024.7341789108
3√n 433.46723863051
4√n 94.998600931333
5√n 38.209712283757

Divisors of 81445827

1, 3, 17, 43, 51, 129, 731, 2193, 37139, 111417, 631363, 1596977, 1894089, 4790931, 27148609, 81445827

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 -81445826
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 81445827 can be divided by 16 positive divisors. The sum of these divisors (counting 81445827) is 1, the average is 0.0625.

Base conversion 81445827

Base System Value
2 Binary 100110110101100001111000011
3 Ternary 12200020212200010
4 Quaternary 10312230033003
5 Quinary 131322231302
6 Senary 12025400003
8 Octal 466541703
10 Decimal 81445827
12 Duodecimal 23339003
16 Hexadecimal 4dac3c3
20 Vigesimal 1590eb7
36 Base36 1cho03

Cryptographic Hash Functions

md5 2a0b8908581403c8934f8d383826e2dc
sha1 9be70edbaa23f94289681d3c37ed3685210ab071
sha256 f8aeea8a97a848338000b0d09e3d4c3c02667c0db52e77aeaa9f05772bec18bb
sha512 911ad9d1c1027de423a2bd9c126a4f94b6f97012daa01934db9ac93a88a74bd1b19ed6973ee24298de156e9b4bbbf65190f39b98aff29663699cc718f849aaa8
ripemd-160 722508e49a406e2733cadbd78c61dee126357a9f

81445827 as geometric shapes

Circle

Radius = n
Diameter 162891654
Circumference 511739223.53749
Area 2.0839512134674E+16

Sphere

Radius = n
Volume 2.2630550667801E+24
Surface area 8.3358048538698E+16
Circumference 511739223.53749

Square

Length = n
Perimeter 325783308
Area 6633422735713929
Diagonal 115181793.14209

Cube

Length = n
Surface area 39800536414283574
Volume 5.4026460055082E+23
Space diagonal 141068310.42847

Equilateral Triangle

Length = n
Perimeter 244337481
Area 2.8723563015848E+15
Altitude 70534155.214233

Triangular Pyramid

Length = n
Surface area 2.8723563015848E+15
Volume 6.3670793780755E+22
Height 38393931.047364