Properties of the Number 71249

Seventy-One Thousand Two Hundred Forty-Nine

Basics

Value: 71248 → 71249 → 71250

Parity: odd

Prime: Yes

Previous Prime: 71237

Next Prime: 71257

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 71249

Divisors: 1, 71249

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10001011001010001

Octal: 213121

Duodecimal: 35295

Hexadecimal: 11651

Square: 5076420001

Square Root: 266.925083122587

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

Primes p such that p² = π(x³) + π(y³) for some positive integers·and y, where π(m) denotes the number of primes not exceeding m. A262730

Euclid-Mullin sequence (A000945) with initial value a(1)=47 instead of a(1)=2. A51319

Primes starting a run of at least 4 consecutive primes with binary Hamming distance 1. A392914

Numbers k such that gcd(k, R(k)) > 1, where R(k) (A004086) is the digit reversal of k. A71249

Triangle T(n, k) = ∑_m=0..k ∑_j=0..m Multinomial(n-k-m-j, j, m, k), read by rows. A141724