Properties of the Number 9902

Nine Thousand Nine Hundred Two

Basics

Value: 9901 → 9902 → 9903

Parity: even

Prime: No

Previous Prime: 9901

Next Prime: 9907

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 4951

Divisors: 1, 2, 4951, 9902

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010101110

Octal: 23256

Duodecimal: 5892

Hexadecimal: 26ae

Square: 98049604

Square Root: 99.508793581271

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 integer partitions of n where 2*(number of distinct parts) >= (number of parts). A361394

Number of times the digit 9 appears in the first 10ⁿ digits of π after the decimal point. A99300

Numbers k such that binomial(4k, k) - 1 is prime. A125240

G.f. satisfies A(x) = ( 1 + x·A(x)^5/2 * (1 + x·A(x)) )². A371574

Indices k such that A377091(k) is immediately followed by A377091(k+1) = -A377091(k). A379802

Numbers k such that sigma₀(k-1) + sigma₀(k) + sigma₀(k+1) = 10, where sigma₀(k) = A000005(k). A317670

Triangle formed by Pascal's rule with borders = A000108. A134634

Coordination sequence for Ni2In, Position Ni1 and In. A9941

Coordination sequence for Ni2In, Position Ni2. A9942

a(0) = 1, a(n) = 11·n² + 2 for n>0. A10003