697,142

2 × 348571

Starting at 697,142, the Collatz iteration reaches 1 after 198 steps. The first transition is 348571; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 348571

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,045,716

Proper Divisor Sum 348,574

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #697141 ← → #697157

Radix Representation

Decimal	697142
Binary	10101010001100110110 (20 bits)
Octal	0o2521466
Hexadecimal	0xAA336

Divisor Catalog (4)

1 2 348,571 697,142

Collatz Trajectory (198 steps to reach 1)

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

697,142 348,571 1,045,714 522,857 1,568,572 784,286 392,143 1,176,430 588,215 1,764,646 882,323 2,646,970 1,323,485 3,970,456 1,985,228 992,614 496,307 1,488,922 744,461 2,233,384 1,116,692 558,346 279,173 837,520 418,760 209,380 104,690 52,345 157,036 78,518 39,259 117,778 58,889 176,668 88,334 44,167 132,502 66,251 198,754 99,377 298,132 149,066 74,533 223,600 111,800 55,900 27,950 13,975 41,926 20,963 62,890 31,445 94,336 47,168 23,584 11,792 5,896 2,948 1,474 737

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