Properties of the Number 4721

Four Thousand Seven Hundred Twenty-One

Basics

Value: 4720 → 4721 → 4722

Parity: odd

Prime: Yes

Previous Prime: 4703

Next Prime: 4723

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 4721

Divisors: 1, 4721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1001001110001

Octal: 11161

Duodecimal: 2895

Hexadecimal: 1271

Square: 22287841

Square Root: 68.70953354520753

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 partitions of n if there are two kinds of 1's and two kinds of 2's. A97

Numbers that are the sum of 2 positive 4th powers. A3336

First spoke of a hexagonal spiral. A56105

Expansion of e.g.f. exp(x)/(1 + LambertW(-x)). A86331

Prime numbers congruent to 1 modulo 16 representable by both x² + 32·y² and x² + 64·y². A325067

Quartan primes: primes of the form x⁴ + y⁴, x > 0, y > 0. A2645

Numbers k such that (12^k - 5^k)/7 is prime. A128348

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264]. A78848

Least n-gap prime: a(n) = least prime p for which there is no prime between n·p and n·q, where q is the next prime after p. A195325

Primes of form n² + 625. A256777