Properties of the Number 16545

Sixteen Thousand Five Hundred Forty-Five

Basics

Value: 16544 → 16545 → 16546

Parity: odd

Prime: No

Previous Prime: 16529

Next Prime: 16547

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 1103

Divisors: 1, 3, 5, 15, 1103, 3309, 5515, 16545

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010100001

Octal: 40241

Duodecimal: 96A9

Hexadecimal: 40a1

Square: 273737025

Square Root: 128.62736878285276

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

Triangle T(n, k, j) = T(n-1, k, j) + T(n-1, k-1, j) + (2·j + 1)*prime(j)*T(n-2, k-1, j) with T(2, k, j) = prime(j) and j = 9, read by rows. A153654

Odd composite integers m such that A014448(m) == 4 (mod m). A335670

Number of integer partitions of n without all different sums of two-element submultisets. A366753

Number of rooted projective plane trees with n nodes. A6080

Ulam's spiral (SSW spoke). A143838

The sum of the next n terms of A114103. A114105

Positions of pandigital 10-digit numbers after the decimal point in the decimal expansion of π. A280183

Expansion of 1/((1-x)(1-2x)(1-4x)(1-9x)). A21084

Number of integers in n-th generation of tree T(3/4) defined in Comments. A274146

a(n) = 324·n² - 564·n + 321 (n>=1). A304617