Numberwise

28,800

28,800 bits per second was the modem speed at which the web became mainstream.

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Where 28,800 fits

Where 28,800 fits: Mathematics, Related numbersMathematics: Powerful number, Harshad (Niven) number. Related numbers: 14400.MathematicsPowerful numberHarshad (Niven) numberRelated numbers1440028,800
28,800 connects to 2 worlds: mathematics, related numbers.

Why 28,800 is special

V.34 modems reached it in 1994, and the consumer internet boom followed immediately. The technology and the speed threshold arrived together.

Factors & digit properties

Divisors (72)
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 128, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 384, 400, 450, 480, 576, 600, 640, 720, 800, 900, 960, 1152, 1200, 1440, 1600, 1800, 1920, 2400, 2880, 3200, 3600, 4800, 5760, 7200, 9600, 14400, 28800
Prime factorisation
2^7 × 3^2 × 5^2
Digit sum
18
Digital root
9

Representations

Decimal
28800
Binary
111000010000000
Octal
70200
Hexadecimal
7080
Scientific notation
2.880 × 10^4

Other mathematical patterns

  • Abundant number
  • Powerful number
  • Harshad (Niven) number

Related numbers & connections

Connection
14.4 kbps made images worth sending and 28.8 arrived in 1994, immediately before the consumer internet boom. Adoption curves tend to follow bandwidth thresholds rather than predict them.

14.4 kbps made images worth sending and 28.8 arrived in 1994, immediately before the consumer internet boom. Adoption curves tend to follow bandwidth thresholds rather than predict them.

View 14400 →

Other connections

  • developed from14400
    why?

    Strength 0.50, confidence "high".

How is 28,800 connected to another number? →

Technology & computing

  • V.34 modems reached 28.8 kbps in 1994 and consumer internet adoption accelerated sharply from that point. Bandwidth thresholds tend to be visible in adoption curves afterwards rather than predicted before.

    DocumentedTechnology & computingPeriod: 1994

Common questions

Is 28,800 a prime number?

No, 28,800 is not prime.

What are the factors of 28,800?

The factors of 28,800 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 128, 144, 150, 160, 180, 192, 200, 225, 240, 288, 300, 320, 360, 384, 400, 450, 480, 576, 600, 640, 720, 800, 900, 960, 1152, 1200, 1440, 1600, 1800, 1920, 2400, 2880, 3200, 3600, 4800, 5760, 7200, 9600, 14400, 28800.

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