81898983 (number)

81898983 is an odd 8-digits composite number following 81898982 and preceding 81898984. In scientific notation, it is written as 8.1898983 × 10^7. The sum of its digits is 54. It has a total of 2 prime factors and 4 positive divisors. There are 54599316 positive integers (up to 81898983) that are relatively prime to 81898983.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred ninety-eight thousand nine hundred eighty-three

Notation

Scientific notation 8.1898983 × 10^7
Engineering notation 8.1898983 × 10^6

Prime Factorization of 81898983

Prime Factorization 9 × 9099887

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81898983
Product of the distinct prime numbers

The prime factorization of 81898983 is 9 × 9099887. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 8, 80, 7, 506, 239, 7545, 8027, 26234, 40122, 760734, 614212, 2901572, 6945646, 90678636, 62216866, 135224259, 387927896, 7090022262, 1243074536

Basic calculations (n = 81898983)

Multiplication

n×y
n×2 163797966
n×3 245696949
n×4 327595932
n×5 409494915

Division

n÷y
n÷2 40949491.5
n÷3 27299661
n÷3 20474745.75
n÷5 16379796.6

Exponentiation

ny
n2 6707443416434289
n3 5.4933279433601E+23
n4 4.4989797184668E+31
n5 3.6846186348005E+39

Nth Root

y√n
2√n 9049.8056885217
3√n 434.26967425774
4√n 95.130466668264
5√n 38.252136932668

Divisors of 81898983

1, 9, 9099887, 81898983

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81898982
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81898983 can be divided by 4 positive divisors. The sum of these divisors (counting 81898983) is 1, the average is 0.25.

Base conversion 81898983

Base System Value
2 Binary 100111000011010110111100111
3 Ternary 12201002220021200
4 Quaternary 10320122313213
5 Quinary 131431231413
6 Senary 12043213543
8 Octal 470326747
10 Decimal 81898983
12 Duodecimal 235172b3
16 Hexadecimal 4e1ade7
20 Vigesimal 15bh793
36 Base36 1crdnr

Cryptographic Hash Functions

md5 fe9a59147497dc9f3398015c090001f4
sha1 84525eae9a7278356a1747c5860be4d954f4dd91
sha256 b5561212c82e87c98279784889e3dc4e3138ff57eab4b8bf7bcba0701c86e502
sha512 dc2eeeb424a48f269cbfe59c9c10c2b4f5e245b9952502372be09ec58fc19247dcbaa1627bd85fcb7a2374145d860e7ac7f0a9c17f1d8946e8d18a6ab55b6062
ripemd-160 ee7aee4b95345e45edb9d1ba7285a7eb3a41755d

81898983 as geometric shapes

Circle

Radius = n
Diameter 163797966
Circumference 514586486.65855
Area 2.1072054961439E+16

Sphere

Radius = n
Volume 2.3010398280826E+24
Surface area 8.4288219845757E+16
Circumference 514586486.65855

Square

Length = n
Perimeter 327595932
Area 6707443416434289
Diagonal 115822652.50316

Cube

Length = n
Surface area 40244660498605734
Volume 5.4933279433601E+23
Space diagonal 141853199.64422

Equilateral Triangle

Length = n
Perimeter 245696949
Area 2.9044081965394E+15
Altitude 70926599.82211

Triangular Pyramid

Length = n
Surface area 2.9044081965394E+15
Volume 6.4739490667192E+22
Height 38607550.834388