Properties of the Number 3954

Three Thousand Nine Hundred Fifty-Four

Basics

Value: 3953 → 3954 → 3955

Parity: even

Prime: No

Previous Prime: 3947

Next Prime: 3967

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 659

Divisors: 1, 2, 3, 6, 659, 1318, 1977, 3954

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101110010

Octal: 7562

Duodecimal: 2356

Hexadecimal: f72

Square: 15634116

Square Root: 62.88083968904996

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that 2^k - 3 is prime. A50414

Numbers in the cycle-attractors of length=14 of the function f(x)=A063919(x). A97030

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 2 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 2 4 6 or 7. A252433

T(n,k) = number of n-bead necklaces labeled with numbers -k..k not allowing reversal, with sum zero with no three beads in a row equal. A208945

List of distinct numbers appearing as denominators of Bernoulli numbers. A90801

G.f.: ∏_{i>=1, j>=1, k>=1} (1 + x^i·j*k). A280473

Number of permutations of the multiset {1,1,2,2,3,3,...,n+1,n+1} avoiding the permutation patterns {132, 231, 2134}. A181510

Positions of 5 in A274640. A275190

G.f.: 1/(1 - x*(1-x³)/(1 - x²*(1-x⁴)/(1 - x³*(1-x⁵)/(1 - x⁴*(1-x⁶)/(1 - ...))))), a continued fraction. A227360

Numbers that are members of unitary σ aliquot cycles (union of unitary perfect, unitary amicable and unitary sociable numbers). A327157