10001 = 73 × 137
10001 = 104 + 14
10001 = (1 × 23 × (4 + 5) × 6 + 7) × 8 + 9
10001 = 9876 + 5 × (4 × 3 × 2 + 1)
10001 = 0^4 + 1^9 − 2^8 − 3^7 + 4^6 + 5^0 + 6^5 + 7^2 + 8^3 + 9^1
10001 = 1^2 + 100^2 = 65^2 + 76^2
10001 = 1^4 + 10^4
10001^2 = 200^2 + 9999^2 = 1551^2 + 9880^2
10001 divides 100^4 - 1.
10001 = 1 + ((11 − 1)(1+1+1+1))
= 2/2 + ((2 × (2 + 2) + 2)(2+2))
= 3 + (3 × 3333 − 3/3)
= 4/4 + (((44 − 4)/4)4)
= 5/5 + ((5 + 5)(5−5/5))
= 6/6 + (((66 − 6)/6)(6−(6+6)/6))
= 7/7 + (((77 − 7)/7)(77/7−7))
= 8/8 + ((((8 + 8)/8) + 8)(8×8/(8+8)))
= ((9 + 9)/9) + 9999
Semiprime (Product of 2 Primes)
Strobogrammatic number: the same upside down.
Factors: 1, 73, 137, 10001
Representations, Binary to Hexadecimal:
10011100010001_2
111201102_3
2130101_4
310001_5
114145_6
41105_7
23421_8
14642_9
7572_11
5955_12
4724_13
3905_14
2e6b_15
2711_16
<--- --->
Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
