Properties of the Number 70644

Seventy Thousand Six Hundred Forty-Four

Basics

Value: 70643 → 70644 → 70645

Parity: even

Prime: No

Previous Prime: 70639

Next Prime: 70657

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 7 × 29 ²

Divisors: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001001111110100

Octal: 211764

Duodecimal: 34A70

Hexadecimal: 113f4

Square: 4990574736

Square Root: 265.78939030743874

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

Number of sublattices of index n in generic 4-dimensional lattice. A38991

a(n) = 1 + prime(n) + prime(n)² + prime(n)³. A131991

Number of maximal irredundant sets in the n-cycle graph. A286954

a(n) = (41ⁿ - 1)/40. A218744

The sum of divisors of the smallest cubefull number that is a multiple of n. A369720

Negative value of coefficient of x^n-2 in the characteristic polynomial of a certain n X n integer circulant matrix. A127407

Number of rods required to make a 3-D cube of side length n. A59986

Matrix inverse of triangle A121334, where A121334(n,k) = C( n*(n+1)/2 + n-k, n-k) for n>=k>=0. A121439

The sum of divisors of the smallest cubefull exponentially odd number that is divisible by n. A369758

a(n) = sigma₁(n) * sigma₂(n). A379812