128

domain: N

Properties

Digital Properties

Digit Count
3
Digit Sum
11
Digital Root
2
Palindromic Number
no
Repdigit
no
Automorphic
no
Kaprekar Number
no
Multiplicative Persistence
2

Divisibility

Divisor Count
8
Divisor Sum
255
Proper Divisor Sum (Aliquot Sum)
127
Abundant Number
no
Perfect Number
no
Deficient Number
yes
Highly Composite
no
Weird Number
no
Untouchable Number
no
Primitive Abundant
no

Derived Values

Euler's Totient
64
Möbius Function
0
Radical
2
Omega Function (Ω)
7
Little Omega Function (ω)
1

Special

Factorial
no
Catalan Number
no
Bell Number
no
Motzkin Number
no
Primorial
no

Figurate Numbers

Fibonacci Number
no
Triangular Number
no
Perfect Square
no
Perfect Cube
no
Pentagonal Number
no
Hexagonal Number
no
Lucas Number
no
Tetrahedral Number
no
Pell Number
no
Tribonacci Number
no
Pronic Number
no

Recreational

Happy Number
no
Harshad Number
no
Narcissistic Number
no
Collatz Steps
7
Smith Number
no

Primality

Prime
no
Composite Number
yes
Semiprime
no
Squarefree Number
no
Prime Power
yes
Prime Factorization
no
Twin Prime
no
Mersenne Prime
no
Sophie Germain Prime
no
Safe Prime
no
Powerful Number
yes
Achilles Number
no
Perfect Power
yes
Smooth Number
yes
Carmichael Number
no

Classification

Even
yes
Odd
no

Names

German
einshundertachtundzwanzig· ordinal: einshundertachtundzwanzigste
English
one hundred twenty-eight· ordinal: one hundred twenty-eighth
Spanish
ciento veintiocho· ordinal: 128º
French
cent vingt-huit· ordinal: cent vingt-huitième
Italian
centoventotto· ordinal: 128º
Latin
centum viginti octo· ordinal: 128.
Portuguese
cento e vinte e oito· ordinal: 128º

Appears in sequences