2,378,387

11 × 216217

Starting at 2,378,387, the Collatz iteration reaches 1 after 143 steps. The first transition is 7135162; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 11 × 216217

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,594,616

Proper Divisor Sum 216,229

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #2378371 ← → #2378399

Radix Representation

Decimal	2378387
Binary	1001000100101010010011 (22 bits)
Octal	0o11045223
Hexadecimal	0x244A93

Divisor Catalog (4)

1 11 216,217 2,378,387

Collatz Trajectory (143 steps to reach 1)

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

2,378,387 7,135,162 3,567,581 10,702,744 5,351,372 2,675,686 1,337,843 4,013,530 2,006,765 6,020,296 3,010,148 1,505,074 752,537 2,257,612 1,128,806 564,403 1,693,210 846,605 2,539,816 1,269,908 634,954 317,477 952,432 476,216 238,108 119,054 59,527 178,582 89,291 267,874 133,937 401,812 200,906 100,453 301,360 150,680 75,340 37,670 18,835 56,506 28,253 84,760 42,380 21,190 10,595 31,786 15,893 47,680 23,840 11,920 5,960 2,980 1,490 745 2,236 1,118 559 1,678 839 2,518

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