Properties of the Number 21463

Twenty-One Thousand Four Hundred Sixty-Three

Basics

Value: 21462 → 21463 → 21464

Parity: odd

Prime: No

Previous Prime: 21433

Next Prime: 21467

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 13 ² × 127

Divisors: 1, 13, 127, 169, 1651, 21463

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101001111010111

Octal: 51727

Duodecimal: 10507

Hexadecimal: 53d7

Square: 460660369

Square Root: 146.50255970460037

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 into prime power parts (1 included); number of nonisomorphic Abelian subgroups of symmetric group S_n. A23893

Number of alternately co-strong integer partitions of n. A317256

a(n) = (3·n+1)*(4·n+1). A33577

Expansion of exp( ∑_n>=1 -sigma₄(n)*xⁿ/n ) in powers of x. A283264

Triangle defined by T(n,k) = T(n-1,k-1) + ∑_j=k..n-2 T(n-1,j)*2^j*T(j,k-1) for n>k>0 with T(n,n)=T(n,0)=1, read by rows. A152795

Positive numbers y such that y² is of the form x² + (x+127)² with integer x. A159466

Principal diagonal of the convolution array A213762. A213763

Nonsemiprimes in A306097 = A121707 \ A267999. A321488

Number of n-digit zeroless numbers whose digit sum is larger than the product of all digits. A360972

Number of unlabeled graphs on n nodes whose components are cycles or complete graphs. A217067