λ
Sequence Observatory

1,071,276

22 × 3 × 89273
Abundant Even Composite

Starting at 1,071,276, the Collatz iteration reaches 1 after 72 steps. The first transition is 535638; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3 × 89273
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,499,672
Proper Divisor Sum 1,428,396
Digit Sum / Digital Root 24 (Root: 6)
Adjacent Primes #1071269 ← → #1071283

Radix Representation

Decimal 1071276
Binary 100000101100010101100 (21 bits)
Octal 0o4054254
Hexadecimal 0x1058AC

Divisor Catalog (12)

1 2 3 4 6 12 89,273 178,546 267,819 357,092 535,638 1,071,276

Collatz Trajectory (72 steps to reach 1)

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

1,071,276 535,638 267,819 803,458 401,729 1,205,188 602,594 301,297 903,892 451,946 225,973 677,920 338,960 169,480 84,740 42,370 21,185 63,556 31,778 15,889 47,668 23,834 11,917 35,752 17,876 8,938 4,469 13,408 6,704 3,352 1,676 838 419 1,258 629 1,888 944 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34

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