1041
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 6
- Digital Root
- 6
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1392
- Proper Divisor Sum (Aliquot Sum)
- 351
- 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
- 692
- Möbius Function
- 1
- Radical
- 1041
- 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
- 124
- 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^3)).at n=30A000601
- Moser-de Bruijn sequence: sums of distinct powers of 4.at n=37A000695
- Numbers that are the sum of 11 positive 5th powers.at n=45A003356
- a(n) = 1000*log_10(n) rounded down.at n=10A004225
- a(n) = 1000*log_10(n) rounded to the nearest integer.at n=10A004226
- Numbers k such that k, k+1 and k+2 have the same number of divisors.at n=20A005238
- Number of protruded partitions of n with largest part at most 6.at n=10A005407
- a(n) = floor( tan(n)^2 ).at n=77A005657
- Coordination sequence T5 for Zeolite Code MTT.at n=20A008193
- Expansion of (1+x^11)/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)).at n=42A008772
- a(n) = 2*a(n-1) + a(n-3), with a(0)=1 and a(1)=2.at n=9A008998
- Coordination sequence T2 for Zeolite Code RTE.at n=22A009891
- arctan(arcsinh(x)+arctan(x))=2*x-19/3!*x^3+1041/5!*x^5-141489/7!*x^7...at n=2A013107
- Coordination sequence T6 for Zeolite Code TER.at n=22A016438
- Expansion of 1/(1 - x^10 - x^11 - x^12 - x^13 - x^14 - x^15 - x^16).at n=61A017892
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEI = ZSM-18 Nan[AlnSi34-nO68].28H2O (n=2.1-5.7) starting with a T2 atom.at n=10A019144
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MEP = Melanophlogite [Si46O92].qR starting with a T1 atom.at n=10A019157
- Numbers k such that the continued fraction for sqrt(k) has period 32.at n=8A020371
- Pisot sequences E(4,9), P(4,9).at n=7A020708
- a(n) = a(n-1) + a(n-2) + 1 for n > 1, a(0)=1, a(1)=5.at n=12A022319