Properties of the Number 929

Nine Hundred Twenty-Nine

Basics

Value: 928 → 929 → 930

Parity: odd

Prime: Yes

Previous Prime: 919

Next Prime: 937

Digit Sum: 20

Digital Root: 2

Palindrome: Yes

Factorization: 929

Divisors: 1, 929

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110100001

Octal: 1641

Duodecimal: 655

Hexadecimal: 3a1

Square: 863041

Square Root: 30.479501308256342

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

Palindromic primes: prime numbers whose decimal expansion is a palindrome. A2385

Primes having only {1, 2, 9} as digits. A385776

a(n) = n + (n+1)². A28387

Primes of form 8n+1, that is, primes congruent to 1 mod 8. A7519

Primes whose reversal in base 10 is also prime (called "palindromic primes" by David Wells, although that name usually refers to A002385). Also called reversible primes. A7500

Primes of form 10·k + 9. A30433

Irregular primes: primes p such that at least one of the numerators of the Bernoulli numbers B₂, B₄, ..., B_p-3 (A000367) is divisible by p. A928

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

Palindromic wing primes (a.k.a. near-repdigit palindromic primes) of the general form r*(10^d - 1)/9 + (m-r)*10^floor(d/2) where d is the number of digits (an odd number > 1), r is the repeated digit, and m (different from r) is the middle digit. A77798

Primes p such that q = (p² + 1)/2 is also a prime. A48161