1027 = 127 + 357 + 537 + 587 + 647 + 837 + 857 + 907
102 = 12 + 3 × 4 × 5 + 6 + 7 + 8 + 9
102 = 9 + 8 + 7 + 6 + 5 + 43 + 2 + 1
102 = 0^7 + 1^8 − 2^2 − 3^9 + 4^5 + 5^6 + 6^0 + 7^4 + 8^1 + 9^3
102 divides 35^2 - 1.
102 = (11 − 1)(1+1) + 1 + 1
= 2 + (2 × (2 + 2) + 2)2
= 3 + 3 × 33
= (444 − 4)/4 − 4 − 4
= 5 × (5 × 5 − 5) + (5 + 5)/5
= 66 + 6 × 6
= 77 + 7 + 7 + 77/7
= (888 − 8)/8 − 8
= 999/9 − 9
Sphenic number: Product of 3 distinct Primes, (List)
Number of vertices in a hexagon when n internal hexagons are drawn between the 6n points that divide each side into n+1 equal parts (n= 4 )
Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n^2 + 2. n=5
Number k such that k^64 + 1 is prime.
Numbers of edges of regular polygon constructible with unmarked straightedge and compass.
a(n) = n*(23*n - 1)/2. n = 3
Sum of four consecutive primes
Factors: 1, 2, 3, 6, 17, 34, 51, 102
One hundred two
Representations, Binary to Hexadecimal:
1100110_2
10210_3
1212_4
402_5
250_6
204_7
146_8
123_9
93_11
86_12
7b_13
74_14
6c_15
66_16
Undergraduate Texts in Mathematics
Graduate Studies in Mathematics

