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153 is the 17th triangular number (Pythagoras) - that is, it is the sum of the first 17 integers:
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 = 153
The picture on the right shows why triangular numbers are so called: they always form a triangle.
The addition of the base number 17 with 153 leads to the tenfold: 153 + 17 = 170
Zero is meaningless in numerology. This is due to the fact that, at the time of writing, our modern, decimal number system (including 0) was not yet introduced. The spelling of numbers was additive at that time (e.g. XVII).
The digit sum of 153 multiplied by 17 again gives 153, the 17th triangle number.
1 + 5 + 3 = 9 and 9 x 17 = 153. The factors in primes: 3 x 3 x 17 = 153
The primes in the square contained in the series 1-17 give 666:
22 + 32 + 52 + 72 + 112 + 132 + 172 = 4 + 9 + 25 + 49 + 121 + 169 + 289 = 666
The number 153 corresponds to the sum of the cubic numbers (3) of their digits:
13 + 53 + 33 = 1 + 125 + 27 = 153 | (Thus, she is one of the four three-digit narcissistic [Armstrong] numbers).
As a factorial calculation it is: 1! + 2! + 3! + 4! + 5! = 153
1 + 12 + 123 + 1234 + 12345 = 1 + 2 + 6 + 24 + 120 = 153
The digit sum of 153 gives 32:
1 + 5 + 3 = 9 = 3 x 3 = 32
The sum of all dividends of 153 gives (3 x 3)2:
1 + 3 + 9 + 17 + 51 = 81 = 92 = (3 x 3)2
Every number, divisible by 3, will end up at 153 by adding up the cubic numbers of their digit sums and the following ones.