2,871,764

2² × 7 × 102563

Starting at 2,871,764, the Collatz iteration reaches 1 after 213 steps. The first transition is 1435882; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 7 × 102563

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 5,743,584

Proper Divisor Sum 2,871,820

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #2871761 ← → #2871767

Radix Representation

Decimal	2871764
Binary	1010111101000111010100 (22 bits)
Octal	0o12750724
Hexadecimal	0x2BD1D4

Divisor Catalog (12)

1 2 4 7 14 28 102,563 205,126 410,252 717,941 1,435,882 2,871,764

Collatz Trajectory (213 steps to reach 1)

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

2,871,764 1,435,882 717,941 2,153,824 1,076,912 538,456 269,228 134,614 67,307 201,922 100,961 302,884 151,442 75,721 227,164 113,582 56,791 170,374 85,187 255,562 127,781 383,344 191,672 95,836 47,918 23,959 71,878 35,939 107,818 53,909 161,728 80,864 40,432 20,216 10,108 5,054 2,527 7,582 3,791 11,374 5,687 17,062 8,531 25,594 12,797 38,392 19,196 9,598 4,799 14,398 7,199 21,598 10,799 32,398 16,199 48,598 24,299 72,898 36,449 109,348

← Previous Integer #2,871,763 Browse Full Index Next Integer #2,871,765 →