1,388,901

3 × 23 × 20129

1,388,901 factors as 3 × 23 × 20129. Its 8 positive divisors give a proper-divisor sum of 543,579, so this integer is deficient. The Collatz stopping time is 106 steps.

Prime Factor Structure

Factorization String 3 × 23 × 20129

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,932,480

Proper Divisor Sum 543,579

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1388887 ← → #1388927

Radix Representation

Decimal	1388901
Binary	101010011000101100101 (21 bits)
Octal	0o5230545
Hexadecimal	0x153165

Divisor Catalog (8)

1 3 23 69 20,129 60,387 462,967 1,388,901

Collatz Trajectory (106 steps to reach 1)

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

1,388,901 4,166,704 2,083,352 1,041,676 520,838 260,419 781,258 390,629 1,171,888 585,944 292,972 146,486 73,243 219,730 109,865 329,596 164,798 82,399 247,198 123,599 370,798 185,399 556,198 278,099 834,298 417,149 1,251,448 625,724 312,862 156,431 469,294 234,647 703,942 351,971 1,055,914 527,957 1,583,872 791,936 395,968 197,984 98,992 49,496 24,748 12,374 6,187 18,562 9,281 27,844 13,922 6,961 20,884 10,442 5,221 15,664 7,832 3,916 1,958 979 2,938 1,469

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