2,645,213

2645213

Starting at 2,645,213, the Collatz iteration reaches 1 after 148 steps. The first transition is 7935640; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 2645213

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 2,645,214

Proper Divisor Sum 1

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2645191 ← → #2645219

Radix Representation

Decimal	2645213
Binary	1010000101110011011101 (22 bits)
Octal	0o12056335
Hexadecimal	0x285CDD

Divisor Catalog (2)

1 2,645,213

Collatz Trajectory (148 steps to reach 1)

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

2,645,213 7,935,640 3,967,820 1,983,910 991,955 2,975,866 1,487,933 4,463,800 2,231,900 1,115,950 557,975 1,673,926 836,963 2,510,890 1,255,445 3,766,336 1,883,168 941,584 470,792 235,396 117,698 58,849 176,548 88,274 44,137 132,412 66,206 33,103 99,310 49,655 148,966 74,483 223,450 111,725 335,176 167,588 83,794 41,897 125,692 62,846 31,423 94,270 47,135 141,406 70,703 212,110 106,055 318,166 159,083 477,250 238,625 715,876 357,938 178,969 536,908 268,454 134,227 402,682 201,341 604,024

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