Properties of the Number 1949

One Thousand Nine Hundred Forty-Nine

Basics

Value: 1948 → 1949 → 1950

Parity: odd

Prime: Yes

Previous Prime: 1933

Next Prime: 1951

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 1949

Divisors: 1, 1949

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110011101

Octal: 3635

Duodecimal: 1165

Hexadecimal: 79d

Square: 3798601

Square Root: 44.14748010928823

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

Primes of the form 2x² + 2xy + 17y². A139827

Number of integer partitions of n that can be partitioned into two or more blocks with equal sums. A321452

Smallest prime > n². A7491

The slowest increasing sequence of primes such that difference of successive terms is unique. A84758

Members of A164368 which are not Ramanujan primes. A164288

Primes congruent to 29 (mod 30). A132236

Number of integer partitions of n that cannot be partitioned into a set (or multiset) of sets with distinct sums. A381990

Numbers where 9 outnumbers any other digit. A292449

Smaller member of a twin prime pair whose mean is a multiple of A002110(3)=30. A60229

a(n) = ∑_k=1..n k·d(k) where d(k) is the number of divisors of k. A143127