λ
Prime Ledger

1,242,558

2 × 32 × 69031
Abundant Even Composite

1,242,558 has the prime decomposition 2 × 3^2 × 69031. Its 3 distinct prime factors produce 12 positive divisors.

Prime Factor Structure

Factorization String 2 × 3^2 × 69031
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,692,248
Proper Divisor Sum 1,449,690
Digit Sum / Digital Root 27 (Root: 9)
Adjacent Primes #1242517 ← → #1242569

Radix Representation

Decimal 1242558
Binary 100101111010110111110 (21 bits)
Octal 0o4572676
Hexadecimal 0x12F5BE

Divisor Catalog (12)

1 2 3 6 9 18 69,031 138,062 207,093 414,186 621,279 1,242,558

Collatz Trajectory (173 steps to reach 1)

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

1,242,558 621,279 1,863,838 931,919 2,795,758 1,397,879 4,193,638 2,096,819 6,290,458 3,145,229 9,435,688 4,717,844 2,358,922 1,179,461 3,538,384 1,769,192 884,596 442,298 221,149 663,448 331,724 165,862 82,931 248,794 124,397 373,192 186,596 93,298 46,649 139,948 69,974 34,987 104,962 52,481 157,444 78,722 39,361 118,084 59,042 29,521 88,564 44,282 22,141 66,424 33,212 16,606 8,303 24,910 12,455 37,366 18,683 56,050 28,025 84,076 42,038 21,019 63,058 31,529 94,588 47,294

More profiles

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