Properties of the Number 9898

Nine Thousand Eight Hundred Ninety-Eight

Basics

Value: 9897 → 9898 → 9899

Parity: even

Prime: No

Previous Prime: 9887

Next Prime: 9901

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 ² × 101

Divisors: 1, 2, 7, 14, 49, 98, 101, 202, 707, 1414

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011010101010

Octal: 23252

Duodecimal: 588A

Hexadecimal: 26aa

Square: 97970404

Square Root: 99.48869282486326

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

Tetranacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4), with initial conditions a(0..3) = (0, 0, 1, 0). A1631

Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered. A211856

T(n,k)=Number of -k..k arrays x(0..n+2) of n+3 elements with zero sum and no two or three adjacent elements summing to zero. A200430

Numbers k such that numerator(Bernoulli(2·k)/(2·k)) is different from numerator(Bernoulli(2·k)/(2·k*(2·k-1))). A90495

Length of n-th term in Look and Say sequences A005150 and A007651. A5341

Numbers with rounded up arithmetic mean of digits = 9. A178369

Numbers which have only digits 8 and 9 in base 10. A256341

Numbers whose smallest decimal digit is 8. A284069

Total number of blocks containing only elements of the same parity in all partitions of [n]. A363434

Minimal value of sum(p(i)p(i+1),i=1..n), where p(n+1)=p(1), as p ranges over all permutations of {1,2,...,n}. A110611