Properties of the Number 39903

Thirty-Nine Thousand Nine Hundred Three

Basics

Value: 39902 → 39903 → 39904

Parity: odd

Prime: No

Previous Prime: 39901

Next Prime: 39929

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 47 × 283

Divisors: 1, 3, 47, 141, 283, 849, 13301, 39903

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001101111011111

Octal: 115737

Duodecimal: 1B113

Hexadecimal: 9bdf

Square: 1592249409

Square Root: 199.75735280584792

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 ways to split a strict integer partition of n into consecutive subsequences with strictly decreasing sums. A318684

The first of three consecutive triangular numbers the sum of which is equal to the sum of three consecutive primes. A298168

Triangular numbers representable as x·y+x+y such that·and y are triangular numbers, x>=y>1. A259746

Number of compositions of n into twin primes (i.e., primes that are members of a twin prime pair, like 3, 5, 7, 11, 13, but not 2 or 23). A77608

Triangular numbers representable as x·y+x+y such that·and y are triangular numbers, x>=y>0. A259745

Triangular numbers n such that each decimal digit of n is equal to the difference of at least two other digits of n. A255917

Leading term of Stirling's approximation to n!, sqrt(2*π)*n^n+(1/2)/eⁿ, rounded up. A5395

Triangular numbers with internal digits also forming a triangular number. A69702

Triangular numbers composed of digits {0,3,9}. A119069

Triangular numbers which are a concatenation of two or more positive triangular numbers. A68144