Numberwise

7538

NGC 7538 contains the largest known protostar.

1 confirmed record · 1 sourceChecked, general knowledgeHow we qualify claimsReport a correction

Where 7538 fits

Where 7538 fits: Mathematics, Related numbersMathematics: Semiprime. Related numbers: 6334.MathematicsSemiprimeRelated numbers63347538
7538 connects to 2 worlds: mathematics, related numbers.

Why 7538 is special

The object forming inside it is roughly three hundred times the diameter of the solar system, which is a scale that makes the term protostar misleading.

Factors & digit properties

Divisors (4)
1, 2, 3769, 7538
Prime factorisation
2 × 3769
Digit sum
23
Digital root
5

Representations

Decimal
7538
Binary
1110101110010
Octal
16562
Hexadecimal
1d72
Scientific notation
7.538 × 10^3

Other mathematical patterns

Related numbers & connections

Connection
Both are heavily obscured star-forming regions studied principally in the infrared.

Both are heavily obscured star-forming regions studied principally in the infrared.

View 6334 →

Other connections

  • is associated with6334
    why?

    Strength 0.50, confidence "high".

How is 7538 connected to another number? →

Science

  • NGC 7538 is a star-forming region containing what is reported as the largest known protostar, with a disc structure on the order of hundreds of astronomical units.

    DocumentedSciencePeriod: 1787–

Common questions

Is 7538 a prime number?

No, 7538 is not prime.

What are the factors of 7538?

The factors of 7538 are 1, 2, 3769, 7538.

About this page's data

Mathematical facts:computed directly from the number's value — nothing to source or verify externally.

Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.

Last reviewed: 3 August 2026