Properties of the Number 75150

Seventy-Five Thousand One Hundred Fifty

Basics

Value: 75149 → 75150 → 75151

Parity: even

Prime: No

Previous Prime: 75149

Next Prime: 75161

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 ² × 167

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 25

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010110001110

Octal: 222616

Duodecimal: 375A6

Hexadecimal: 1258e

Square: 5647522500

Square Root: 274.135003237456

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

Indices of semiprimes where largest gap occurs. Or, positions of records in A065516. A85809

Number of terms in A324315 (squarefree integers m > 1 such that if prime p divides m, then the sum of the base p digits of m is at least p) less than 10ⁿ. A324318

Least k such that the difference between consecutive semiprimes A065516(k) equals n, or 0 if no such k exists. A123375

Expansion of 1/((1 - x - x⁴)² - 4·x⁵). A375283

Conjectured largest number that is not the sum of three generalized n-gonal numbers, or -1 if there is no largest number. A118282

Number of partitions of (4, n) into a sum of distinct pairs. A268347

Reversion of rooted trees A000081. A50395

Expansion of ∏_k>=1 (1 - x^k)^k*(k+1*(k+2)/6). A292387

Conjectured largest number that is not the sum of three generalized (2n+1)-gonal numbers; bisection of A118282. A118284

Records in semiprime gaps ordered by merit. A114412