738
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 1638
- Proper Divisor Sum (Aliquot Sum)
- 900
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 240
- Möbius Function
- 0
- Radical
- 246
- Omega Function (Ω)
- 4
- 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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 20
- Smith 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
- yes
- Odd
- no
Names
- German
- siebenhundertachtunddreißig· ordinal: siebenhundertachtunddreißigste
- English
- seven hundred thirty-eight· ordinal: seven hundred thirty-eighth
- Spanish
- setecientos treinta y ocho· ordinal: 738º
- French
- sept cent trente-huit· ordinal: sept cent trente-huitième
- Italian
- settecentotrentotto· ordinal: 738º
- Latin
- septingenti triginta octo· ordinal: 738.
- Portuguese
- setecentos e trinta e oito· ordinal: 738º
Appears in sequences
- Number of partitions of n if there are two kinds of 1's and two kinds of 2's.at n=13A000097
- Number of multigraphs with 4 nodes and n edges.at n=15A003082
- Self numbers divisible by sum of their digits (or, self numbers which are also Harshad numbers).at n=22A003219
- Numbers that are the sum of 4 nonzero 4th powers.at n=36A003338
- Numbers that are the sum of 12 positive 5th powers.at n=33A003357
- Numbers that are the sum of 10 positive 6th powers.at n=11A003366
- Smallest positive integer that is n times its digit sum, or 0 if no such number exists.at n=40A003634
- a(n) = round(n*phi^10), where phi is the golden ratio, A001622.at n=6A004945
- a(n) = ceiling(n*phi^10), where phi is the golden ratio, A001622.at n=6A004965
- Number of points on surface of truncated cube: a(n) = 46*n^2 + 2 for n > 0.at n=4A005911
- Generalized Fibonacci numbers D_{n,2}.at n=10A006210
- Numbers n such that n^32 + 1 is prime.at n=19A006315
- Trails of length n on hexagonal lattice.at n=4A006818
- Inverse Moebius transform applied twice to squares.at n=21A007433
- Unique period lengths of primes mentioned in A007615.at n=29A007498
- Impractical numbers: even abundant numbers (A173490) that are not practical(2) (A007620).at n=38A007621
- Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.at n=6A007993
- Coordination sequence T1 for Zeolite Code APD.at n=18A008034
- Coordination sequence T1 for Zeolite Code JBW.at n=18A008121
- Coordination sequence T7 for Zeolite Code NES.at n=17A008211