λ
Harmonic Matrix

7,931,731

7931731
Deficient Odd Prime

7,931,731 has digital root 4. The neighboring primes are 7931719 and 7931771; its proper-divisor sum differs from the starting integer by -7,931,730.

Prime Factor Structure

Factorization String 7931731
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 7,931,732
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #7931719 ← → #7931771

Radix Representation

Decimal 7931731
Binary 11110010000011101010011 (23 bits)
Octal 0o36203523
Hexadecimal 0x790753

Divisor Catalog (2)

1 7,931,731

Collatz Trajectory (279 steps to reach 1)

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

7,931,731 23,795,194 11,897,597 35,692,792 17,846,396 8,923,198 4,461,599 13,384,798 6,692,399 20,077,198 10,038,599 30,115,798 15,057,899 45,173,698 22,586,849 67,760,548 33,880,274 16,940,137 50,820,412 25,410,206 12,705,103 38,115,310 19,057,655 57,172,966 28,586,483 85,759,450 42,879,725 128,639,176 64,319,588 32,159,794 16,079,897 48,239,692 24,119,846 12,059,923 36,179,770 18,089,885 54,269,656 27,134,828 13,567,414 6,783,707 20,351,122 10,175,561 30,526,684 15,263,342 7,631,671 22,895,014 11,447,507 34,342,522 17,171,261 51,513,784 25,756,892 12,878,446 6,439,223 19,317,670 9,658,835 28,976,506 14,488,253 43,464,760 21,732,380 10,866,190

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