7371
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 20
- Divisor Sum
- 13552
- Proper Divisor Sum (Aliquot Sum)
- 6181
- 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
- 3888
- Möbius Function
- 0
- Radical
- 273
- Omega Function (Ω)
- 6
- Little Omega Function (ω)
- 3
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
- 44
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- Degrees of irreducible representations of alternating group A_13.at n=38A003868
- Degrees of irreducible representations of symmetric group S_13.at n=70A003877
- Degrees of irreducible representations of symmetric group S_13.at n=69A003877
- a(n) = (3^n/n!)*Product_{k=0..n-1} (3*k + 1). 3-central binomial coefficients.at n=5A004987
- 5-dimensional pyramidal numbers: a(n) = n*(n+1)*(n+2)*(n+3)*(2n+3)/5!.at n=11A005585
- List of pairs of primes in reverse order, starting at 1.at n=10A007796
- Coordination sequence for FeS2-Marcasite, S position.at n=42A009954
- Integers k such that k divides 22^k - 1.at n=46A014959
- Numerator of sum of -3rd powers of divisors of n.at n=39A017669
- Conjectured number of irreducible multiple zeta values of depth n and weight 3n (confirmed up to n=7).at n=38A020999
- Prefix primes in base 8 (written in base 8).at n=41A024768
- a(n) = least m such that if r and s in {1/1, 1/3, 1/5, ..., 1/(2n-1)} satisfy r < s, then r < k/m < (k+4)/m < s for some integer k.at n=28A024847
- Distinct odd elements in the 5-Pascal triangle A028313.at n=30A028319
- Elements to the right of the central elements of the 5-Pascal triangle A028313 that are not 1.at n=51A028324
- Odd elements to the right of the central elements of the 5-Pascal triangle A028313.at n=43A028325
- Distinct odd numbers in the (1,2)-Pascal triangle A029635.at n=50A029642
- Numbers to the right of the central elements of the (1,2)-Pascal triangle A029635 that are different from 2.at n=51A029649
- Odd numbers to the right of the central elements of the (1,2)-Pascal triangle A029635.at n=31A029650
- Odd numbers in (2,1)-Pascal triangle A029653 that are different from 1.at n=54A029657
- Distinct odd numbers in (2,1)-Pascal triangle A029653.at n=45A029660