λ
Sequence Observatory

9,180,785

5 × 1836157
Deficient Odd Composite

Starting at 9,180,785, the Collatz iteration reaches 1 after 225 steps. The first transition is 27542356; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 1836157
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 11,016,948
Proper Divisor Sum 1,836,163
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #9180767 ← → #9180859

Radix Representation

Decimal 9180785
Binary 100011000001011001110001 (24 bits)
Octal 0o43013161
Hexadecimal 0x8C1671

Divisor Catalog (4)

1 5 1,836,157 9,180,785

Collatz Trajectory (225 steps to reach 1)

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

9,180,785 27,542,356 13,771,178 6,885,589 20,656,768 10,328,384 5,164,192 2,582,096 1,291,048 645,524 322,762 161,381 484,144 242,072 121,036 60,518 30,259 90,778 45,389 136,168 68,084 34,042 17,021 51,064 25,532 12,766 6,383 19,150 9,575 28,726 14,363 43,090 21,545 64,636 32,318 16,159 48,478 24,239 72,718 36,359 109,078 54,539 163,618 81,809 245,428 122,714 61,357 184,072 92,036 46,018 23,009 69,028 34,514 17,257 51,772 25,886 12,943 38,830 19,415 58,246

More profiles

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