90000 (number)

Updated on Sep 26, 2024

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← 89999 90000 Cardinal ninety thousand Roman numeral XC		90000 90001 → Factorization 2× 3× 5
Ordinal 90000th (ninety thousandth)

90,000 (ninety thousand) is the natural number that comes after 89,999 and before 90,001.

Selected numbers in the range 90000–99999

90000 – sum of the cubes of the first 24 positive integers, square of 300.

90625 – the only five-digit automorphic number: 90625² = 8212890625

93312 – Leyland number: 6⁶ + 6⁶

94249 – palindromic square: 307²

94932 – Leyland number: 7⁵ + 5⁷

95121 – Kaprekar number: 95121² = 9048004641; 90480 + 04641 = 95121

96557 – Markov number: 5² + 6466² + 96557² = 3 × 5 × 6466 × 96557

99066 – largest number whose square uses all of the decimal digits once: 99066² = 9814072356. It is also a rotationally symmetric ambigram in decimal.

99991 - largest five-digit prime number

99999 – repdigit, Kaprekar number: 99999² = 9999800001; 99998 + 00001 = 99999

References

90000 (number) Wikipedia

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