λ
Sequence Observatory

1,699,358

2 × 31 × 27409
Deficient Even Composite

Starting at 1,699,358, the Collatz iteration reaches 1 after 176 steps. The first transition is 849679; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 31 × 27409
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,631,360
Proper Divisor Sum 932,002
Digit Sum / Digital Root 41 (Root: 5)
Adjacent Primes #1699349 ← → #1699361

Radix Representation

Decimal 1699358
Binary 110011110111000011110 (21 bits)
Octal 0o6367036
Hexadecimal 0x19EE1E

Divisor Catalog (8)

1 2 31 62 27,409 54,818 849,679 1,699,358

Collatz Trajectory (176 steps to reach 1)

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

1,699,358 849,679 2,549,038 1,274,519 3,823,558 1,911,779 5,735,338 2,867,669 8,603,008 4,301,504 2,150,752 1,075,376 537,688 268,844 134,422 67,211 201,634 100,817 302,452 151,226 75,613 226,840 113,420 56,710 28,355 85,066 42,533 127,600 63,800 31,900 15,950 7,975 23,926 11,963 35,890 17,945 53,836 26,918 13,459 40,378 20,189 60,568 30,284 15,142 7,571 22,714 11,357 34,072 17,036 8,518 4,259 12,778 6,389 19,168 9,584 4,792 2,396 1,198 599 1,798

More profiles

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