λ
Sequence Observatory

2,718,299

2718299
Deficient Odd Prime

Starting at 2,718,299, the Collatz iteration reaches 1 after 231 steps. The first transition is 8154898; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 2718299
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 2,718,300
Proper Divisor Sum 1
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #2718293 ← → #2718319

Radix Representation

Decimal 2718299
Binary 1010010111101001011011 (22 bits)
Octal 0o12275133
Hexadecimal 0x297A5B

Divisor Catalog (2)

Collatz Trajectory (231 steps to reach 1)

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

2,718,299 8,154,898 4,077,449 12,232,348 6,116,174 3,058,087 9,174,262 4,587,131 13,761,394 6,880,697 20,642,092 10,321,046 5,160,523 15,481,570 7,740,785 23,222,356 11,611,178 5,805,589 17,416,768 8,708,384 4,354,192 2,177,096 1,088,548 544,274 272,137 816,412 408,206 204,103 612,310 306,155 918,466 459,233 1,377,700 688,850 344,425 1,033,276 516,638 258,319 774,958 387,479 1,162,438 581,219 1,743,658 871,829 2,615,488 1,307,744 653,872 326,936 163,468 81,734 40,867 122,602 61,301 183,904 91,952 45,976 22,988 11,494 5,747 17,242

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