1154
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1734
- Proper Divisor Sum (Aliquot Sum)
- 580
- 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
- 576
- Möbius Function
- 1
- Radical
- 1154
- 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
- yes
- Odd
- no
Appears in sequences
- Number of binary partitions: number of partitions of 2n into powers of 2.at n=28A000123
- Smallest nonnegative number that is the sum of 3 squares in exactly n ways.at n=14A000437
- Smallest number that is the sum of 3 squares in at least n ways.at n=13A000451
- Smallest number that is the sum of 3 squares in at least n ways.at n=14A000451
- a(n) = 3*Catalan(n) - Catalan(n-1) - 1.at n=6A000781
- Number of partitions of n into at most 4 parts.at n=50A001400
- Companion Pell numbers: a(n) = 2*a(n-1) + a(n-2), a(0) = a(1) = 2.at n=8A002203
- Sum of logarithmic numbers.at n=5A002746
- Numbers that are the sum of 7 positive 5th powers.at n=34A003352
- Numbers that are the sum of 11 positive 7th powers.at n=9A003378
- Values of m in the discriminant D = -4*m leading to a new maximum of the L-function of the Dirichlet series L(1) = Sum_{k=1..oo} Kronecker(D,k)/k.at n=14A003420
- a(n) = a(n-1)^2 - 2, with a(0) = 6.at n=2A003423
- a(n) = 6*a(n-1) - a(n-2), with a(0) = 2, a(1) = 6.at n=4A003499
- Number of points on surface of tetrahedron; coordination sequence for sodalite net (equals 2*n^2+2 for n > 0).at n=24A005893
- Number of set-like molecular species of degree n.at n=15A007649
- Coordination sequence T1 for Zeolite Code ACO, ASV, EDI, and THO.at n=24A008084
- Coordination sequence T7 for Zeolite Code EUO.at n=21A008102
- Coordination sequence T1 for Zeolite Code MTW.at n=22A008196
- Coordination sequence T4 for Zeolite Code MTW.at n=22A008199
- Coordination sequence T2 for Zeolite Code THO.at n=24A008239