2,157,062

2 × 17 × 63443

Starting at 2,157,062, the Collatz iteration reaches 1 after 210 steps. The first transition is 1078531; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 17 × 63443

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 3,425,976

Proper Divisor Sum 1,268,914

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2157041 ← → #2157091

Radix Representation

Decimal	2157062
Binary	1000001110101000000110 (22 bits)
Octal	0o10165006
Hexadecimal	0x20EA06

Divisor Catalog (8)

1 2 17 34 63,443 126,886 1,078,531 2,157,062

Collatz Trajectory (210 steps to reach 1)

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

2,157,062 1,078,531 3,235,594 1,617,797 4,853,392 2,426,696 1,213,348 606,674 303,337 910,012 455,006 227,503 682,510 341,255 1,023,766 511,883 1,535,650 767,825 2,303,476 1,151,738 575,869 1,727,608 863,804 431,902 215,951 647,854 323,927 971,782 485,891 1,457,674 728,837 2,186,512 1,093,256 546,628 273,314 136,657 409,972 204,986 102,493 307,480 153,740 76,870 38,435 115,306 57,653 172,960 86,480 43,240 21,620 10,810 5,405 16,216 8,108 4,054 2,027 6,082 3,041 9,124 4,562 2,281

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