2,920,142

2 × 1460071

Starting at 2,920,142, the Collatz iteration reaches 1 after 200 steps. The first transition is 1460071; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 1460071

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 4,380,216

Proper Divisor Sum 1,460,074

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #2920139 ← → #2920163

Radix Representation

Decimal	2920142
Binary	1011001000111011001110 (22 bits)
Octal	0o13107316
Hexadecimal	0x2C8ECE

Divisor Catalog (4)

1 2 1,460,071 2,920,142

Collatz Trajectory (200 steps to reach 1)

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

2,920,142 1,460,071 4,380,214 2,190,107 6,570,322 3,285,161 9,855,484 4,927,742 2,463,871 7,391,614 3,695,807 11,087,422 5,543,711 16,631,134 8,315,567 24,946,702 12,473,351 37,420,054 18,710,027 56,130,082 28,065,041 84,195,124 42,097,562 21,048,781 63,146,344 31,573,172 15,786,586 7,893,293 23,679,880 11,839,940 5,919,970 2,959,985 8,879,956 4,439,978 2,219,989 6,659,968 3,329,984 1,664,992 832,496 416,248 208,124 104,062 52,031 156,094 78,047 234,142 117,071 351,214 175,607 526,822 263,411 790,234 395,117 1,185,352 592,676 296,338 148,169 444,508 222,254 111,127

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