98 = 14 +24+34
98 = 1 × 23 + 45 + 6 + 7 + 8 + 9
98 = 9 + 8 + 7 + 65 + 4 + 3 + 2 × 1
98 = 0^8 + 1^9 + 2^6 − 3^7 + 4^5 + 5^4 + 6^0 + 7^2 + 8^3 + 9^1
98 = 111 − 11 − 1 − 1
= 2 × 2 × (22 + 2) + 2
= 3 × 33 − 3/3
= 4 − 4 × 4 + (444 − 4)/4
= 5 × (5 × 5 − 5) − (5 + 5)/5
= (666 − 6)/6 − 6 − 6
= 7 × (7 + 7)
= 88 + (88 − 8)/8
= 99 − 9/9
98 = 7^2 + 7^2
Number of ways to write 22 as an ordered sum of 4 nonprime numbers.
Number n which is the sum of 3 nonzero 4th powers
Number k such that 3^k + 2 is prime
Number k such that k divides the sum of digits of all numbers from 1 to k.
Ninety-eight
Representations, Binary to Hexadecimal:
1100010_2
10122_3
1202_4
343_5
242_6
200_7
142_8
118_9
8a_11
82_12
77_13
70_14
68_15
62_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
