Properties of the Number -213003

Two Hundred Thirteen Thousand Three

Basics

Value: -213004 → -213003 → -213002

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 7 ³ × 23

Divisors: 1, 3, 7, 9, 21, 23, 27, 49, 63, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110100000000001011

Octal: -640013

Duodecimal: -A3323

Hexadecimal: -3400b

Square: 45370278009

Square Root: 461.5224804925541

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) = 6·a(n-1)-8·a(n-2)-3 for n > 10; a(0)=753, a(1)=5043, a(2)=25779, a(3)=213003, a(4)=1687623, a(5)=18171219, a(6)=73344977, a(7)=769993485, a(8)=4480470831, a(9)=17582325855, a(10)=69524390079. A177423

Odd numbers k such that k and k+2 both have at least two divisors with the same value of the Euler totient function (A000010). A373527

Number of 0..n arrays of length 5 with each element unequal to at least one neighbor, starting with 0. A221464

Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LTN = Linde Type N Na384[Al384Si384O1536].518H2O starting with a T4 atom. A19039