81445817 (number)

81445817 is an odd 8-digits prime number following 81445816 and preceding 81445818. In scientific notation, it is written as 8.1445817 × 10^7. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 81445816 positive integers (up to 81445817) that are relatively prime to 81445817.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred forty-five thousand eight hundred seventeen

Notation

Scientific notation 8.1445817 × 10^7
Engineering notation 8.1445817 × 10^6

Prime Factorization of 81445817

Prime Factorization 81445817

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81445817
Product of the distinct prime numbers

The prime factorization of 81445817 is 81445817. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81445817)

Multiplication

n×y
n×2 162891634
n×3 244337451
n×4 325783268
n×5 407229085

Division

n÷y
n÷2 40722908.5
n÷3 27148605.666667
n÷3 20361454.25
n÷5 16289163.4

Exponentiation

ny
n2 6633421106797489
n3 5.4026440154817E+23
n4 4.4002275580106E+31
n5 3.5838012844809E+39

Nth Root

y√n
2√n 9024.7336248778
3√n 433.46722089
4√n 94.998598015328
5√n 38.209711345471

Divisors of 81445817

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81445818
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40722909
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9024.7336802811
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999754438
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81445817 can be divided by 2 positive divisors. The sum of these divisors (counting 81445817) is 81445818, the average is 40722909.

Base conversion 81445817

Base System Value
2 Binary 100110110101100001110111001
3 Ternary 12200020212122202
4 Quaternary 10312230032321
5 Quinary 131322231232
6 Senary 12025355545
8 Octal 466541671
10 Decimal 81445817
12 Duodecimal 23338bb5
16 Hexadecimal 4dac3b9
20 Vigesimal 1590eah
36 Base36 1chnzt

Cryptographic Hash Functions

md5 f50f13bd508266094ee6da1720c3929a
sha1 eb4ea417235f47cef6e3ae4310df0851a557eab8
sha256 e36ab48ab20818d9073585566187627d5be90a98d92f675bb0eb24dfd05d0b7a
sha512 bc23c7401a3c1978e5a66dfeb6cca228d84117447f0119fbaa58ce43e4ec33a6926ce527be5cafabdecf101afc26a6ee699ebd12425849d243fa96108813e9f8
ripemd-160 bfd7b2eea7b1b7765b57a64bf04b7f68be7dd2fa

81445817 as geometric shapes

Circle

Radius = n
Diameter 162891634
Circumference 511739160.70564
Area 2.0839507017282E+16

Sphere

Radius = n
Volume 2.2630542331997E+24
Surface area 8.335802806913E+16
Circumference 511739160.70564

Square

Length = n
Perimeter 325783268
Area 6633421106797489
Diagonal 115181778.99996

Cube

Length = n
Surface area 39800526640784934
Volume 5.4026440154817E+23
Space diagonal 141068293.10796

Equilateral Triangle

Length = n
Perimeter 244337451
Area 2.8723555962433E+15
Altitude 70534146.553978

Triangular Pyramid

Length = n
Surface area 2.8723555962433E+15
Volume 6.3670770328067E+22
Height 38393926.333319