Properties of the Number 461

Four Hundred Sixty-One

Basics

Value: 460 → 461 → 462

Parity: odd

Prime: Yes

Previous Prime: 457

Next Prime: 463

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 461

Divisors: 1, 461

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111001101

Octal: 715

Duodecimal: 325

Hexadecimal: 1cd

Square: 212521

Square Root: 21.470910553583888

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Lesser of twin primes. A1359

Pythagorean primes: primes of the form 4·k + 1. A2144

Twin primes. A1097

Prime-indexed primes: primes with prime subscripts. A6450

Primes of the form 2x² + 2xy + 17y². A139827

a(n) = n + (n+1)². A28387

Ramanujan primes R_n: a(n) is the smallest number such that if x >= a(n), then π(x) - π(x/2) >= n, where π(x) is the number of primes <= x. A104272

Primes with primitive root 2. A1122

Primes congruent to 1 or 2 modulo 4; or, primes of form x² + y²; or, -1 is a square mod p. A2313

Primes of the form 3n-1. A3627