λ
Sequence Observatory

7,870,457

7 × 1124351
Deficient Odd Composite

Starting at 7,870,457, the Collatz iteration reaches 1 after 93 steps. The first transition is 23611372; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 1124351
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 8,994,816
Proper Divisor Sum 1,124,359
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #7870453 ← → #7870459

Radix Representation

Decimal 7870457
Binary 11110000001011111111001 (23 bits)
Octal 0o36013771
Hexadecimal 0x7817F9

Divisor Catalog (4)

1 7 1,124,351 7,870,457

Collatz Trajectory (93 steps to reach 1)

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

7,870,457 23,611,372 11,805,686 5,902,843 17,708,530 8,854,265 26,562,796 13,281,398 6,640,699 19,922,098 9,961,049 29,883,148 14,941,574 7,470,787 22,412,362 11,206,181 33,618,544 16,809,272 8,404,636 4,202,318 2,101,159 6,303,478 3,151,739 9,455,218 4,727,609 14,182,828 7,091,414 3,545,707 10,637,122 5,318,561 15,955,684 7,977,842 3,988,921 11,966,764 5,983,382 2,991,691 8,975,074 4,487,537 13,462,612 6,731,306 3,365,653 10,096,960 5,048,480 2,524,240 1,262,120 631,060 315,530 157,765 473,296 236,648 118,324 59,162 29,581 88,744 44,372 22,186 11,093 33,280 16,640 8,320

More profiles

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