1030
1030 megahertz is the aircraft transponder interrogation frequency.
- Even
- Composite
Where 1030 fits
Why 1030 is special
Ground radar asks on 1030 and aircraft answer on 1090, and that pairing is what makes secondary surveillance radar work.
1030 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 5, 10, 103, 206, 515, 1030
- Prime factorisation
- 2 × 5 × 103
- Digit sum
- 4
- Digital root
- 4
Representations
- Decimal
- 1030
- Binary
- 10000000110
- Octal
- 2006
- Hexadecimal
- 406
- Roman numeral
- MXXX
- Scientific notation
- 1.030 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
Related numbers & connections
Ground radar interrogates on one frequency and aircraft reply on the other, which is what secondary radar is.
View 1090 →Numbers Around Us
- appears alongside1090
why?
Strength 0.50, confidence "high".
Technology & computing
Secondary surveillance radar interrogates aircraft transponders on 1030 MHz, with replies transmitted on 1090 MHz. The frequency pair is specified in ICAO Annex 10.
DocumentedTechnology & computingGeography: International — ICAOPeriod: 1950s–
Common questions
Is 1030 a prime number?
No, 1030 is not prime.
What are the factors of 1030?
The factors of 1030 are 1, 2, 5, 10, 103, 206, 515, 1030.
What is 1030 in Roman numerals?
1030 in Roman numerals is MXXX.
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