Properties of the Number 75320

Seventy-Five Thousand Three Hundred Twenty

Basics

Value: 75319 → 75320 → 75321

Parity: even

Prime: No

Previous Prime: 75307

Next Prime: 75323

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 5 × 7 × 269

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10010011000111000

Octal: 223070

Duodecimal: 37708

Hexadecimal: 12638

Square: 5673102400

Square Root: 274.44489428663087

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

Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect. A327948

Number of scalene triangles, distinct up to congruence, on an n X n grid (or geoboard). A190313

Expansion of ∏_k>=1 ((1 + x^k) * (1 + 3·x^k)). A266822

θ series of direct sum of 2 copies of 4-dimensional lattice QQF.4.i. A212817

Number of (n+2) X (1+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 2 3 4 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 2 3 4 6 or 7. A252271

Sum(prime(k)*10^k,k=1..n). A101310

Numbers n with following property: suppose n⁶ = d1 d2 d3 ...dk in decimal; then d1! + d2! + ... + dk! is a square. A130688

Pair the odd numbers such that the k-th pair is (r, r+2k) where r is the smallest odd number not included earlier: (1, 3), (5, 9), (7, 13), (11, 19), (15, 25), (17, 29), (21, 35), (23, 39), (27, 45), ... This is the sequence of the product of the members of pairs. A75320