1,471,220

2² × 5 × 73561

Starting at 1,471,220, the Collatz iteration reaches 1 after 150 steps. The first transition is 735610; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 73561

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 3,089,604

Proper Divisor Sum 1,618,384

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #1471219 ← → #1471271

Radix Representation

Decimal	1471220
Binary	101100111001011110100 (21 bits)
Octal	0o5471364
Hexadecimal	0x1672F4

Divisor Catalog (12)

1 2 4 5 10 20 73,561 147,122 294,244 367,805 735,610 1,471,220

Collatz Trajectory (150 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

1,471,220 735,610 367,805 1,103,416 551,708 275,854 137,927 413,782 206,891 620,674 310,337 931,012 465,506 232,753 698,260 349,130 174,565 523,696 261,848 130,924 65,462 32,731 98,194 49,097 147,292 73,646 36,823 110,470 55,235 165,706 82,853 248,560 124,280 62,140 31,070 15,535 46,606 23,303 69,910 34,955 104,866 52,433 157,300 78,650 39,325 117,976 58,988 29,494 14,747 44,242 22,121 66,364 33,182 16,591 49,774 24,887 74,662 37,331 111,994 55,997

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