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Properties of the Number 30105

Thirty Thousand One Hundred Five

Basics

Value: 30104 → 30105 → 30106

Parity: odd

Prime: No

Previous Prime: 30103

Next Prime: 30109

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 3 × 5 × 223

Divisors: 1, 3, 5, 9, 15, 27, 45, 135, 223, 669

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111010110011001

Octal: 72631

Duodecimal: 15509

Hexadecimal: 7599

Square: 906311025

Square Root: 173.50792489105504

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 polyforms with n cells on the faces of a pentakis dodecahedron up to rotation. A383495
Numbers such that the digital sum base 2 and the digital sum base 3 and the digital sum base 10 all are equal. A135120
a(n) = 5·4*3·2*1 - 10·9*8·7*6 + 15·14·13·12·11 - 20·19·18·17·16 + ... - (up to the n-th term). A319888
Numbers k divisible by at least one nontrivial permutation (rearrangement) of the digits of k, excluding all permutations that result in digit loss. A90056
Numbers n divisible by exactly two nontrivial permutations (rearrangements) of the digits of n. A90057
a(n) is the number of ways to partition an n X n X n cube into four noncongruent cuboids of different volumes. A385580
Unitary hyperperfect numbers. A225150
Expansion of ∏k>=1 1/(1 + xk/(1 - x)k). A307311
Inverse Euler transform of A000016. A57772
Number of -3..3 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern). A200176