1077
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 15
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1440
- Proper Divisor Sum (Aliquot Sum)
- 363
- 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
- 716
- Möbius Function
- 1
- Radical
- 1077
- 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
- The convergent sequence C_n for the ternary continued fraction (3,1;2,2) of period 2.at n=10A000964
- Bosonic string states.at n=27A005308
- Positions of remoteness 5 in Beans-Don't-Talk.at n=34A005697
- Number of cycles in the complement of a path.at n=8A006184
- Coordination sequence T1 for Zeolite Code MER.at n=24A008160
- Coordination sequence T1 for Zeolite Code MOR.at n=21A008182
- Coordination sequence T4 for Zeolite Code TON.at n=20A008244
- Coordination sequence T1 for Zeolite Code DFO.at n=25A009875
- Coordination sequence T2 for Zeolite Code ZON.at n=23A009920
- sec(exp(x)-cos(x))=1+1/2!*x^2+6/3!*x^3+21/4!*x^4+120/5!*x^5...at n=6A013320
- Define the generalized Pisot sequence T(a(0),a(1)) by: a(n+2) is the greatest integer such that a(n+2)/a(n+1) < a(n+1)/a(n). This is T(3,5).at n=18A018917
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTN = ZSM-39 [Si136O272].qR starting with a T2 atom.at n=10A019184
- Numbers k such that the continued fraction for sqrt(k) has period 12.at n=51A020351
- Number of 3's in n-th term of A007651.at n=30A022468
- a(n) = a(n-1) + c(n+1) for n >= 3, a( ) increasing, given a(1)=1, a(2)=8; where c( ) is complement of a( ).at n=40A022954
- Numbers k such that Fibonacci(k) == 2 (mod k).at n=20A023174
- Convolution of A014306 (starting 0,0,1,1,0,1,1,1,1,...) and primes.at n=27A023674
- Coordination sequence T1 for Zeolite Code IFR.at n=23A024982
- Index of 3^n within the sequence of the numbers of the form 3^i*4^j.at n=51A025696
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 20.at n=19A031518