1374
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
- 3
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 2760
- Proper Divisor Sum (Aliquot Sum)
- 1386
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- yes
Derived Values
- Euler's Totient
- 456
- Möbius Function
- -1
- Radical
- 1374
- Omega Function (Ω)
- 3
- 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
- 39
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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 positive integers <= 2^n of form x^2 + 2 y^2.at n=12A000067
- a(n) = n^2 + prime(n).at n=34A004232
- Total number of fixed points in trees with n nodes.at n=10A005201
- Number of points on surface of tricapped prism: a(n) = 7*n^2 + 2 for n > 0, a(0)=1.at n=14A005919
- E-trees with exactly 3 colors.at n=5A007144
- Aliquot sequence starting at 180.at n=7A008891
- Coordination sequence for FeS2-Pyrite, Fe position.at n=17A009957
- a(0) = 1, a(n) = 28*n^2 + 2 for n>0.at n=7A010018
- Number of partitions of n into its divisors that are powers of primes (A000961) with at least one part of size 1.at n=77A014650
- Powers of sqrt(18) rounded down.at n=5A017958
- Powers of fourth root of 18 rounded down.at n=10A018096
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BIK = Bikitaite Li2[Al2Si4O12].2H2O starting from a T1 atom.at n=10A019076
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite RUT = RUB-10 R4[B4Si32O72] starting from a T4 atom.at n=10A019231
- Coordination sequence T4 for Zeolite Code SAO.at n=29A019574
- Numbers k such that the continued fraction for sqrt(k) has period 20.at n=28A020359
- a(n) = n*(19*n + 1)/2.at n=12A022277
- Numbers k such that Fibonacci(k) == 8 (mod k).at n=13A023177
- Numbers with exactly 3 4's in base 5 expansion.at n=32A023740
- a(n) = [ (2nd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+1 positive integers congruent to 1 mod 4}.at n=36A024385
- [ (3rd elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+2 positive integers congruent to 1 mod 4}.at n=43A024388