1,672,135

5 × 334427

Starting at 1,672,135, the Collatz iteration reaches 1 after 158 steps. The first transition is 5016406; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 334427

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,006,568

Proper Divisor Sum 334,433

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1672129 ← → #1672199

Radix Representation

Decimal	1672135
Binary	110011000001111000111 (21 bits)
Octal	0o6301707
Hexadecimal	0x1983C7

Divisor Catalog (4)

1 5 334,427 1,672,135

Collatz Trajectory (158 steps to reach 1)

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

1,672,135 5,016,406 2,508,203 7,524,610 3,762,305 11,286,916 5,643,458 2,821,729 8,465,188 4,232,594 2,116,297 6,348,892 3,174,446 1,587,223 4,761,670 2,380,835 7,142,506 3,571,253 10,713,760 5,356,880 2,678,440 1,339,220 669,610 334,805 1,004,416 502,208 251,104 125,552 62,776 31,388 15,694 7,847 23,542 11,771 35,314 17,657 52,972 26,486 13,243 39,730 19,865 59,596 29,798 14,899 44,698 22,349 67,048 33,524 16,762 8,381 25,144 12,572 6,286 3,143 9,430 4,715 14,146 7,073 21,220 10,610

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