9394
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 25
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 16
- Divisor Sum
- 17856
- Proper Divisor Sum (Aliquot Sum)
- 8462
- 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
- 3600
- Möbius Function
- 1
- Radical
- 9394
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 4
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
- 109
- 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
- Numbers k such that k*(k+8) is a palindrome.at n=17A028567
- Decimal part of cube root of a(n) starts with 1: first term of runs.at n=19A034127
- Numbers having four 2's in base 8.at n=18A043432
- Numbers whose base-5 representation contains exactly three 0's and two 3's.at n=28A045201
- Integers which have at least two different factorizations into coprime parts whose sum are equal.at n=40A069064
- Partition the concatenation 1234567...of natural numbers into successive strings which are even, all different and > 2. (0 never taken as the most significant digit.)at n=59A077295
- a(n) = A051201(n^2).at n=43A078163
- Convolution of the prime numbers with phi(n).at n=29A086734
- Nontrivial slowest increasing sequence whose succession of digits is that of the nonnegative integers.at n=47A098080
- a(n) = Sum_{k=0..floor(n/8)} binomial(n-5*k, 3*k).at n=26A113032
- a(n) = 10*n^2 - 7*n + 1.at n=31A158186
- Sums of two successive primes s such that s+-3 are primes.at n=18A179485
- Number of arrangements of n+1 nonzero numbers x(i) in -5..5 with the sum of floor(x(i)/x(i+1)) equal to zero.at n=3A189494
- T(n,k)=Number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of floor(x(i)/x(i+1)) equal to zero.at n=31A189498
- Number of arrangements of 5 nonzero numbers x(i) in -n..n with the sum of floor(x(i)/x(i+1)) equal to zero.at n=4A189501
- Number of (n+2) X 3 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=5A202640
- Number of (n+2)X8 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=0A202645
- T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=15A202647
- T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=20A202647
- Number of distinct sums of subsets of the first n squares {1,4,9,...,n^2}.at n=29A208531