λ
Sequence Observatory

1,323,209

1051 × 1259
Deficient Odd Composite

Starting at 1,323,209, the Collatz iteration reaches 1 after 168 steps. The first transition is 3969628; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 1051 × 1259
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,325,520
Proper Divisor Sum 2,311
Digit Sum / Digital Root 20 (Root: 2)
Adjacent Primes #1323199 ← → #1323221

Radix Representation

Decimal 1323209
Binary 101000011000011001001 (21 bits)
Octal 0o5030311
Hexadecimal 0x1430C9

Divisor Catalog (4)

1 1,051 1,259 1,323,209

Collatz Trajectory (168 steps to reach 1)

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

1,323,209 3,969,628 1,984,814 992,407 2,977,222 1,488,611 4,465,834 2,232,917 6,698,752 3,349,376 1,674,688 837,344 418,672 209,336 104,668 52,334 26,167 78,502 39,251 117,754 58,877 176,632 88,316 44,158 22,079 66,238 33,119 99,358 49,679 149,038 74,519 223,558 111,779 335,338 167,669 503,008 251,504 125,752 62,876 31,438 15,719 47,158 23,579 70,738 35,369 106,108 53,054 26,527 79,582 39,791 119,374 59,687 179,062 89,531 268,594 134,297 402,892 201,446 100,723 302,170

More profiles

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