Properties of the Number 29987

Twenty-Nine Thousand Nine Hundred Eighty-Seven

Basics

Value: 29986 → 29987 → 29988

Parity: odd

Prime: No

Previous Prime: 29983

Next Prime: 29989

Digit Sum: 35

Digital Root: 8

Palindrome: No

Factorization: 157 × 191

Divisors: 1, 157, 191, 29987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111010100100011

Octal: 72443

Duodecimal: 1542B

Hexadecimal: 7523

Square: 899220169

Square Root: 173.16754892300116

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

Decimal part of a(n)^1/2 starts with a 'nine digits' anagram. A34277

Triangle read by rows: T(n,k) is the number of simple connected graphs on n nodes with k center nodes. A294525

Sum of the prime parts in the partitions of n into 10 parts. A309471

Number of simple unlabeled n-node graphs with 5 center nodes. A52441

Numbers n such that φ(n) = φ(n+12) and n is not divisible by 2. A217141

Number of partitions of n with rank 2 (the rank of a partition is the largest part minus the number of parts). A101199

a(n) = 68·n² - 1. A158730

a(n) = 17·n² - 1. A321180

Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 31 ones. A31799

Numbers such that the sum of the reverse of their aliquot parts is equal to the reverse of the sum of their aliquot parts. A278948