Properties of the Number 75148

Seventy-Five Thousand One Hundred Forty-Eight

Basics

Value: 75147 → 75148 → 75149

Parity: even

Prime: No

Previous Prime: 75133

Next Prime: 75149

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 18787

Divisors: 1, 2, 4, 18787, 37574, 75148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010010110001100

Octal: 222614

Duodecimal: 375A4

Hexadecimal: 1258c

Square: 5647221904

Square Root: 274.1313553754842

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 n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having a sum of one or less, with rows and columns of the latter in lexicographically nondecreasing order. A227161

Number of scalene triangles, distinct up to congruence, on a centered hexagonal grid of size n. A241236

Table E(n,k) (listed antidiagonalwise as E(0,0), E(1,0), E(0,1), E(2,0), E(1,1), E(0,2), ...) where E(n,k) is F(n+k) for all even n and L(n+k) for all odd n. F(n) and L(n) are the n-th Fibonacci (A000045) and Lucas (A000032) numbers respectively. A75148