Properties of the Number 30969

Thirty Thousand Nine Hundred Sixty-Nine

Basics

Value: 30968 → 30969 → 30970

Parity: odd

Prime: No

Previous Prime: 30949

Next Prime: 30971

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 31 × 37

Divisors: 1, 3, 9, 27, 31, 37, 93, 111, 279, 333

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100011111001

Octal: 74371

Duodecimal: 15B09

Hexadecimal: 78f9

Square: 959078961

Square Root: 175.98011251274957

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 primes <= n!. A3604

Number of 3-dimensional tilings of a 2 X 2 X n box using 2 X 2 X 1 plates and 1 X 2 X 1 dominos. A359884

Divisors of 10¹⁵ - 1. A111117

a(n) is the smallest k > 0 such that the first n multiples of k have the same sum of digits, but (n+1)k has a different one. a(n)=0 if no such k exists. A238088

Number of compositions of n into parts with distinct multiplicities and with exactly nine parts. A321779

Numbers whose set of base-13 digits is {1,3}. A32920

a(n) is the smallest positive number such that a(n)*n is an anagram of a(n)*9. A175698

Numbers k such that 2·5^k - 3 is prime. A57915

Expansion of the series reversion of ∑_k>=1 x^k*(k+1/2). A291418

Primes p such that p - m! is composite, where m is the greatest number such that m! < p. A212266