λ
Sequence Observatory

2,132,918

2 × 101 × 10559
Deficient Even Composite

Starting at 2,132,918, the Collatz iteration reaches 1 after 60 steps. The first transition is 1066459; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 101 × 10559
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,231,360
Proper Divisor Sum 1,098,442
Digit Sum / Digital Root 26 (Root: 8)
Adjacent Primes #2132903 ← → #2132941

Radix Representation

Decimal 2132918
Binary 1000001000101110110110 (22 bits)
Octal 0o10105666
Hexadecimal 0x208BB6

Divisor Catalog (8)

1 2 101 202 10,559 21,118 1,066,459 2,132,918

Collatz Trajectory (60 steps to reach 1)

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

2,132,918 1,066,459 3,199,378 1,599,689 4,799,068 2,399,534 1,199,767 3,599,302 1,799,651 5,398,954 2,699,477 8,098,432 4,049,216 2,024,608 1,012,304 506,152 253,076 126,538 63,269 189,808 94,904 47,452 23,726 11,863 35,590 17,795 53,386 26,693 80,080 40,040 20,020 10,010 5,005 15,016 7,508 3,754 1,877 5,632 2,816 1,408 704 352 176 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2

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