1267
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1456
- Proper Divisor Sum (Aliquot Sum)
- 189
- 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
- 1080
- Möbius Function
- 1
- Radical
- 1267
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 31
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Expansion of 1/((1-x)^2*(1-x^2)*(1-x^5)*(1-x^10)*(1-x^20)).at n=32A001305
- Numbers that are the sum of 2 positive 5th powers.at n=8A003347
- Numbers that are the sum of at most 2 positive 5th powers.at n=13A004842
- Numbers that are the sum of at most 3 positive 5th powers.at n=26A004843
- Numbers that are the sum of at most 4 positive 5th powers.at n=45A004844
- Representation degeneracies for boson strings.at n=31A005290
- Number of elements in Z[ omega ] whose 'smallest algorithm' is <= n, where omega^2 = -omega - 1.at n=5A006458
- Coordination sequence T3 for Zeolite Code AFR.at n=27A008021
- 5-dimensional centered cube numbers.at n=3A008515
- Expansion of 1/((1-x)*(1-x^3)*(1-x^5)*(1-x^7)*(1-x^9)).at n=61A008674
- If a, b are in the sequence, so is ab+3.at n=32A009302
- Coordination sequence T3 for Zeolite Code -PAR.at n=25A009857
- Coordination sequence T5 for Zeolite Code CON.at n=25A009872
- Numbers k such that phi(k) | sigma(k + 5).at n=43A015843
- Numbers k such that k | 7^k + 7.at n=17A015893
- Positive integers n such that 2^n == 2^7 (mod n).at n=40A015927
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite DDR = Deca-dodecasil 3R[Si120O240]qR starting with a T4 atom.at n=10A019107
- Coordination sequence T1 for Zeolite Code CZP.at n=23A019456
- Pseudoprimes to base 48.at n=12A020176
- Positive numbers k such that k = x^5 + y^5 has a solution in nonzero integers x, y.at n=14A020896