745 = 1 × 23 × 4 + 5 × 6 + 7 × 89
745 = 9 + 8 + 7 + 6 × 5 × 4 × 3 × 2 + 1
745 = 0^8 + 1^9 + 2^6 − 3^7 + 4^5 + 5^2 + 6^4 + 7^0 + 8^3 + 9^1
Numbers whose sum of divisors is a square
Semiprime (Product of 2 Primes)
Factors: 1, 5, 149, 745
Representations, Binary to Hexadecimal:
1011101001_2
1000121_3
23221_4
10440_5
3241_6
2113_7
1351_8
1017_9
618_11
521_12
454_13
3b3_14
34a_15
2e9_16
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Undergraduate Texts in Mathematics
Graduate Studies in Mathematics
