1,331,533

7 × 223 × 853

Starting at 1,331,533, the Collatz iteration reaches 1 after 186 steps. The first transition is 3994600; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 7 × 223 × 853

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,530,368

Proper Divisor Sum 198,835

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #1331527 ← → #1331549

Radix Representation

Decimal	1331533
Binary	101000101000101001101 (21 bits)
Octal	0o5050515
Hexadecimal	0x14514D

Divisor Catalog (8)

1 7 223 853 1,561 5,971 190,219 1,331,533

Collatz Trajectory (186 steps to reach 1)

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

1,331,533 3,994,600 1,997,300 998,650 499,325 1,497,976 748,988 374,494 187,247 561,742 280,871 842,614 421,307 1,263,922 631,961 1,895,884 947,942 473,971 1,421,914 710,957 2,132,872 1,066,436 533,218 266,609 799,828 399,914 199,957 599,872 299,936 149,968 74,984 37,492 18,746 9,373 28,120 14,060 7,030 3,515 10,546 5,273 15,820 7,910 3,955 11,866 5,933 17,800 8,900 4,450 2,225 6,676 3,338 1,669 5,008 2,504 1,252 626 313 940 470 235

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