Properties of the Number 74148

Seventy-Four Thousand One Hundred Forty-Eight

Basics

Value: 74147 → 74148 → 74149

Parity: even

Prime: No

Previous Prime: 74143

Next Prime: 74149

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 37 × 167

Divisors: 1, 2, 3, 4, 6, 12, 37, 74, 111, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10010000110100100

Octal: 220644

Duodecimal: 36AB0

Hexadecimal: 121a4

Square: 5497925904

Square Root: 272.3013037060234

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

T(n,k) = half the number of (n+1) X (k+1) binary arrays with no 2 X 2 subblock having exactly 2 ones. A183782

Array read by antidiagonals: T(n,m) = number of self-avoiding walks of any length from NW to SW corners on a grid with n rows and m columns. A271465

Half the number of (n+1) X 4 binary arrays with no 2 X 2 subblock having exactly 2 ones. A183776

Half the number of (n+1) X 7 binary arrays with no 2 X 2 subblock having exactly 2 ones. A183779

a(n) = 54·n² + 6·n. A277990

Numbers k such that 397·2^k+1 is prime. A323043

a(n) = n + floor(n²/2). A74148