1,057,790

2 × 5 × 139 × 761

Starting at 1,057,790, the Collatz iteration reaches 1 after 377 steps. The first transition is 528895; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 139 × 761

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,920,240

Proper Divisor Sum 862,450

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1057781 ← → #1057807

Radix Representation

Decimal	1057790
Binary	100000010001111111110 (21 bits)
Octal	0o4021776
Hexadecimal	0x1023FE

Divisor Catalog (16)

1 2 5 10 139 278 695 761 1,390 1,522 3,805 7,610 105,779 211,558 528,895 1,057,790

Collatz Trajectory (377 steps to reach 1)

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

1,057,790 528,895 1,586,686 793,343 2,380,030 1,190,015 3,570,046 1,785,023 5,355,070 2,677,535 8,032,606 4,016,303 12,048,910 6,024,455 18,073,366 9,036,683 27,110,050 13,555,025 40,665,076 20,332,538 10,166,269 30,498,808 15,249,404 7,624,702 3,812,351 11,437,054 5,718,527 17,155,582 8,577,791 25,733,374 12,866,687 38,600,062 19,300,031 57,900,094 28,950,047 86,850,142 43,425,071 130,275,214 65,137,607 195,412,822 97,706,411 293,119,234 146,559,617 439,678,852 219,839,426 109,919,713 329,759,140 164,879,570 82,439,785 247,319,356 123,659,678 61,829,839 185,489,518 92,744,759 278,234,278 139,117,139 417,351,418 208,675,709 626,027,128 313,013,564

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