754
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 1260
- Proper Divisor Sum (Aliquot Sum)
- 506
- 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
- 336
- Möbius Function
- -1
- Radical
- 754
- 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
- 64
- Smith 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
Names
- German
- siebenhundertvierundfünfzig· ordinal: siebenhundertvierundfünfzigste
- English
- seven hundred fifty-four· ordinal: seven hundred fifty-fourth
- Spanish
- setecientos cincuenta y cuatro· ordinal: 754º
- French
- sept cent cinquante-quatre· ordinal: sept cent cinquante-quatrième
- Italian
- settecentocinquantaquattro· ordinal: 754º
- Latin
- septingenti quinquaginta quattuor· ordinal: 754.
- Portuguese
- setecentos e cinquenta e quatro· ordinal: 754º
Appears in sequences
- a(n) = (5*n+1)*(5*n+4).at n=5A001545
- Sum of totient function: a(n) = Sum_{k=1..n} phi(k), cf. A000010.at n=49A002088
- Numbers that are the sum of 5 positive 4th powers.at n=49A003339
- a(n) = floor(n*phi^7), where phi is the golden ratio, A001622.at n=26A004922
- a(n) = round(n*phi^6), where phi is the golden ratio, A001622.at n=42A004941
- a(n) = ceiling(n*phi^6), where phi is the golden ratio.at n=42A004961
- Number of binary vectors of length n containing no singletons.at n=15A006355
- Minimum diameter of an integral set of n points in the plane, not all on a line.at n=37A007285
- Numbers that are the sum of 2 nonzero squares in 2 or more ways.at n=52A007692
- Coordination sequence T5 for Zeolite Code HEU.at n=18A008120
- Coordination sequence T1 for Milarite.at n=17A008256
- 3x+1 sequence starting at 97.at n=54A008873
- 3x+1 sequence starting at 63.at n=43A008874
- 3x+1 sequence starting at 95.at n=41A008875
- 3x+1 sequence starting at 27.at n=47A008884
- Coordination sequence T5 for Zeolite Code RUT.at n=18A009901
- Numbers k such that the continued fraction for sqrt(k) has period 9.at n=9A010339
- a(n) = n*nextprime(n).at n=26A013636
- a(n) = solution to the postage stamp problem with 2 denominations and n stamps.at n=51A014616
- a(n) = Sum_{0<=k<=n} ceiling(k^2/n).at n=45A014785