2,638,370

2 × 5 × 7 × 37691

2,638,370 factors as 2 × 5 × 7 × 37691. Its 16 positive divisors give a proper-divisor sum of 2,789,278, so this integer is abundant. The Collatz stopping time is 99 steps.

Prime Factor Structure

Factorization String 2 × 5 × 7 × 37691

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 5,427,648

Proper Divisor Sum 2,789,278

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #2638369 ← → #2638381

Radix Representation

Decimal	2638370
Binary	1010000100001000100010 (22 bits)
Octal	0o12041042
Hexadecimal	0x284222

Divisor Catalog (16)

1 2 5 7 10 14 35 70 37,691 75,382 188,455 263,837 376,910 527,674 1,319,185 2,638,370

Collatz Trajectory (99 steps to reach 1)

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

2,638,370 1,319,185 3,957,556 1,978,778 989,389 2,968,168 1,484,084 742,042 371,021 1,113,064 556,532 278,266 139,133 417,400 208,700 104,350 52,175 156,526 78,263 234,790 117,395 352,186 176,093 528,280 264,140 132,070 66,035 198,106 99,053 297,160 148,580 74,290 37,145 111,436 55,718 27,859 83,578 41,789 125,368 62,684 31,342 15,671 47,014 23,507 70,522 35,261 105,784 52,892 26,446 13,223 39,670 19,835 59,506 29,753 89,260 44,630 22,315 66,946 33,473 100,420

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