1,149,136

2⁴ × 71821

Starting at 1,149,136, the Collatz iteration reaches 1 after 54 steps. The first transition is 574568; the starting value is even with 10 positive divisors.

Prime Factor Structure

Factorization String 2^4 × 71821

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 10

Divisor Sum (σ) 2,226,482

Proper Divisor Sum 1,077,346

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1149131 ← → #1149151

Radix Representation

Decimal	1149136
Binary	100011000100011010000 (21 bits)
Octal	0o4304320
Hexadecimal	0x1188D0

Divisor Catalog (10)

1 2 4 8 16 71,821 143,642 287,284 574,568 1,149,136

Collatz Trajectory (54 steps to reach 1)

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

1,149,136 574,568 287,284 143,642 71,821 215,464 107,732 53,866 26,933 80,800 40,400 20,200 10,100 5,050 2,525 7,576 3,788 1,894 947 2,842 1,421 4,264 2,132 1,066 533 1,600 800 400 200 100 50 25 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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