Properties of the Number 71248

Seventy-One Thousand Two Hundred Forty-Eight

Basics

Value: 71247 → 71248 → 71249

Parity: even

Prime: No

Previous Prime: 71237

Next Prime: 71249

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ⁴ × 61 × 73

Divisors: 1, 2, 4, 8, 16, 61, 73, 122, 146, 244

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011001010000

Octal: 213120

Duodecimal: 35294

Hexadecimal: 11650

Square: 5076277504

Square Root: 266.92320993124594

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

a(n) is the number of positive integers k for which ∑_i=1..j (p_i+e_i) = n, where p₁^e_1*...*p_j^e_j is the prime factorization of k. A382330

Number of prime pairs below 10ⁿ having a difference of 34. A93752

Number of tilings of a 7 X n rectangle using right trominoes and 2 X 2 tiles. A219948

Number of tilings of an 8 X n rectangle using right trominoes and 2 X 2 tiles. A219949

Concatenate the terms of A027750 (omitting spaces and commas), chop into blocks of length 5, then omit any leading zeros. A362446

Numbers n, not divisible by 3, 5, 7 or 11, such that A000203(n)-n-1 and 2·n+1-A000203(n) are prime numbers. A180268

Number A(n,k) of tilings of a k X n rectangle using right trominoes and 2 X 2 tiles; square array A(n,k), n>=0, k>=0, read by antidiagonals. A219946

a(n) = ∏_k=1..n lcm(n,k). A71248

Number of 1-connected rooted cubic planar maps with n faces. A58859