Properties of the Number 49121

Forty-Nine Thousand One Hundred Twenty-One

Basics

Value: 49120 → 49121 → 49122

Parity: odd

Prime: Yes

Previous Prime: 49117

Next Prime: 49123

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 49121

Divisors: 1, 49121

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011111111100001

Octal: 137741

Duodecimal: 24515

Hexadecimal: bfe1

Square: 2412872641

Square Root: 221.6325788326256

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) = 3*(2ⁿ-1) - 2·n. A50488

Balanced primes of order nine. A96701

Expansion of (1-x)^-1/(1 - x - 2·x² + 2·x³). A77866

a(0)=2; for n > 0, a(n) = (n+2)*a(n-1) + 1. A185109

a(n) = 6·2ⁿ - 2·n - 5. A142964

A (1,2) Somos-4 sequence. A178075

Lesser of twin self primes, i.e., smaller member of the pair of self primes differing by 2. A380713

a(n) = 192·2ⁿ - 31 (n>=1). A304385

A Somos 9-type recurrence: a(n) = (3·a(n-1)*a(n-8) - a(n-4)*a(n-5))/a(n-9), with a(0)=...=a(8)=1. A122055

Primes p1 such that p1³+p2²=pp are average of twin primes. p1 and p2 consecutive primes, p1 < p2. A138735