128698981 (number)

128698981 is an odd 9-digits prime number following 128698980 and preceding 128698982. In scientific notation, it is written as 1.28698981 × 10^8. The sum of its digits is 52. It has a total of 1 prime factors and 2 positive divisors. There are 128698980 positive integers (up to 128698981) that are relatively prime to 128698981.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation 1.28698981 × 10^8
Engineering notation 1.28698981 × 10^6

Prime Factorization of 128698981

Prime Factorization 128698981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 128698981
Product of the distinct prime numbers

The prime factorization of 128698981 is 128698981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 7, 32, 8, 788, 393, 4561, 8674, 25500, 71939, 56825, 355370, 2126583, 1785598, 97019363, 14263221, 513389099, 831853139, 1665080743, 988624162

Basic calculations (n = 128698981)

Multiplication

n×y
n×2 257397962
n×3 386096943
n×4 514795924
n×5 643494905

Division

n÷y
n÷2 64349490.5
n÷3 42899660.333333
n÷3 32174745.25
n÷5 25739796.2

Exponentiation

ny
n2 16563427710438361
n3 2.1316962682006E+24
n4 2.7434713751892E+32
n5 3.5308197038952E+40

Nth Root

y√n
2√n 11344.557329398
3√n 504.88411025645
4√n 106.51083198153
5√n 41.871162785754

Divisors of 128698981

1, 128698981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 128698982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 64349491
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 11344.557373472
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999844599
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128698981 can be divided by 2 positive divisors. The sum of these divisors (counting 128698981) is 128698982, the average is 64349491.

Base conversion 128698981

Base System Value
2 Binary 111101010111100101001100101
3 Ternary 22222011120210221
4 Quaternary 13222330221211
5 Quinary 230421331411
6 Senary 20434244341
8 Octal 752745145
10 Decimal 128698981
12 Duodecimal 371266b1
16 Hexadecimal 7abca65
20 Vigesimal 2047791
36 Base36 24mgrp

Cryptographic Hash Functions

md5 186324328537d0cbe41b2566fa716771
sha1 49075380192b3e0afc939daadaf22b5b786598a7
sha256 41babb1f49c33a6a02cc0685c4e7fdca908d9b459581e85d076d4fdbdc2a66c9
sha512 4d74794b433ff1225865caffaecec71157a61987810d54cba7cfe128b8cdcfda91b94d9ade15e3afdaa489d77d4d9b4b48991af2dd2d32a098996da80469a4e8
ripemd-160 fe173951136109d37a2b29335b5d16a988deb7da

128698981 as geometric shapes

Circle

Radius = n
Diameter 257397962
Circumference 808639546.46818
Area 5.2035542813379E+16

Sphere

Radius = n
Volume 8.9292284478183E+24
Surface area 2.0814217125352E+17
Circumference 808639546.46818

Square

Length = n
Perimeter 514795924
Area 16563427710438361
Diagonal 182007844.3938

Cube

Length = n
Surface area 99380566262630166
Volume 2.1316962682006E+24
Space diagonal 222913173.97434

Equilateral Triangle

Length = n
Perimeter 386096943
Area 7.1721745854934E+15
Altitude 111456586.98717

Triangular Pyramid

Length = n
Surface area 7.1721745854934E+15
Volume 2.5122281444578E+23
Height 60669281.464599