1,978,580

2² × 5 × 98929

1,978,580 factors as 2^2 × 5 × 98929. Its 12 positive divisors give a proper-divisor sum of 2,176,480, so this integer is abundant. The Collatz stopping time is 197 steps.

Prime Factor Structure

Factorization String 2^2 × 5 × 98929

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 4,155,060

Proper Divisor Sum 2,176,480

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #1978567 ← → #1978589

Radix Representation

Decimal	1978580
Binary	111100011000011010100 (21 bits)
Octal	0o7430324
Hexadecimal	0x1E30D4

Divisor Catalog (12)

1 2 4 5 10 20 98,929 197,858 395,716 494,645 989,290 1,978,580

Collatz Trajectory (197 steps to reach 1)

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

1,978,580 989,290 494,645 1,483,936 741,968 370,984 185,492 92,746 46,373 139,120 69,560 34,780 17,390 8,695 26,086 13,043 39,130 19,565 58,696 29,348 14,674 7,337 22,012 11,006 5,503 16,510 8,255 24,766 12,383 37,150 18,575 55,726 27,863 83,590 41,795 125,386 62,693 188,080 94,040 47,020 23,510 11,755 35,266 17,633 52,900 26,450 13,225 39,676 19,838 9,919 29,758 14,879 44,638 22,319 66,958 33,479 100,438 50,219 150,658 75,329

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