Numberwise

528

528 is the ISO 3166-1 numeric country code for Netherlands.

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Where 528 fits

Where 528 fits: Mathematics, Related numbersMathematics: Triangular number. Related numbers: 31.MathematicsTriangular numberRelated numbers31528
528 connects to 2 worlds: mathematics, related numbers.

Why 528 is special

The Netherlands is one of several countries whose common English name and official name differ, which is exactly the ambiguity a numeric code removes.

528 is part of

Triangular numbers

Factors & digit properties

Divisors (20)
1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528
Prime factorisation
2^4 × 3 × 11
Digit sum
15
Digital root
6

Representations

Decimal
528
Binary
1000010000
Octal
1020
Hexadecimal
210
Roman numeral
DXXVIII
Scientific notation
5.280 × 10^2

Other mathematical patterns

  • Triangular number
  • Abundant number

Related numbers & connections

Connection
The Netherlands' ISO numeric code and calling code. A country whose common and official names differ is exactly the case numeric identifiers exist for.

The Netherlands' ISO numeric code and calling code. A country whose common and official names differ is exactly the case numeric identifiers exist for.

View 31 →

Other connections

  • is associated with31
    why?

    Strength 0.50, confidence "high".

How is 528 connected to another number? →

Geography

  • 528 is the Netherlands' ISO numeric code. Countries whose names vary between usage and officialdom are the clearest argument for identifying states by number.

    DocumentedGeographyGeography: Netherlands

Common questions

Is 528 a prime number?

No, 528 is not prime.

What are the factors of 528?

The factors of 528 are 1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 528.

What is 528 in Roman numerals?

528 in Roman numerals is DXXVIII.

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