Properties of the Number 71120

Seventy-One Thousand One Hundred Twenty

Basics

Value: 71119 → 71120 → 71121

Parity: even

Prime: No

Previous Prime: 71119

Next Prime: 71129

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 5 × 7 × 127

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001010111010000

Octal: 212720

Duodecimal: 351A8

Hexadecimal: 115d0

Square: 5058054400

Square Root: 266.68333281253257

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 ways of writing n as a sum of 7 squares. A8451

θ series of D₇ lattice. A8429

Number of unlabeled rooted trees with n vertices such that every branch of the root has a different number of nodes. A298539

E.g.f. satisfies A(x)^A(x²) = 1 + x·A(x). A355768

a(n) = coefficient of sqrt(3) in the expansion of (2 + sqrt(2) + sqrt(3))ⁿ. A377111

Decimal expansion of ∑_{n >= 1} 1/S(n)!, where S(n) is the Kempner number A002034. A71120