λ
Sequence Observatory

1,394,642

2 × 53 × 59 × 223
Deficient Even Composite

Starting at 1,394,642, the Collatz iteration reaches 1 after 137 steps. The first transition is 697321; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 53 × 59 × 223
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 2,177,280
Proper Divisor Sum 782,638
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #1394633 ← → #1394669

Radix Representation

Decimal 1394642
Binary 101010100011111010010 (21 bits)
Octal 0o5243722
Hexadecimal 0x1547D2

Divisor Catalog (16)

1 2 53 59 106 118 223 446 3,127 6,254 11,819 13,157 23,638 26,314 697,321 1,394,642

Collatz Trajectory (137 steps to reach 1)

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

1,394,642 697,321 2,091,964 1,045,982 522,991 1,568,974 784,487 2,353,462 1,176,731 3,530,194 1,765,097 5,295,292 2,647,646 1,323,823 3,971,470 1,985,735 5,957,206 2,978,603 8,935,810 4,467,905 13,403,716 6,701,858 3,350,929 10,052,788 5,026,394 2,513,197 7,539,592 3,769,796 1,884,898 942,449 2,827,348 1,413,674 706,837 2,120,512 1,060,256 530,128 265,064 132,532 66,266 33,133 99,400 49,700 24,850 12,425 37,276 18,638 9,319 27,958 13,979 41,938 20,969 62,908 31,454 15,727 47,182 23,591 70,774 35,387 106,162 53,081

More profiles

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