90,000
90,000 is the natural number following 89,999 and preceding 90,001. It is the sum of the cubes of the first 24 positive integers, and is the square of 300.90,001 to 90,999
- 90,625 – the only five-digit automorphic number: 906252 = 8212890625
91,000 to 91,999
- 91,125 – 453
92,000 to 92,999
93,000 to 93,999
- 93,312 – Leyland number: 66 + 66. Also a 3-smooth number.
94,000 to 94,999
- 94,249 – palindromic square: 3072
- 94,932 – Leyland number: 75 + 57
95,000 to 95,999
- 95,121 – Kaprekar number: 951212 = 9048004641; 90480 + 04641 = 95121
- 96,557 – Markov number: 52 + 64662 + 965572 = 3 × 5 × 6466 × 96557
97,000 to 97,999
- 97,336 – 463
98,000 to 98,999
- 98,304 – 3-smooth number
99,000 to 99,999
- 99,066 – largest number whose square uses all of the decimal digits once: 990662 = 9814072356. It is also a rotationally symmetric ambigram in decimal.
- 99,991 - largest five-digit prime number
- 99,999 – repdigit, Kaprekar number: 999992 = 9999800001; 99998 + 00001 = 99999
