15,000,000
The Sun's core reaches about 15 million kelvin.
- Even
- Composite
Where 15,000,000 fits
Why 15,000,000 is special
That temperature and the pressure at the centre are what allow hydrogen nuclei to fuse. The fusion is remarkably slow per unit volume — the core produces less heat per cubic metre than a compost heap — and the Sun is bright because it is enormous.
Factors & digit properties
- Divisors (112)
- 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 150, 160, 192, 200, 240, 250, 300, 320, 375, 400, 480, 500, 600, 625, 750, 800, 960, 1000, 1200, 1250, 1500, 1600, 1875, 2000, 2400, 2500, 3000, 3125, 3750, 4000, 4800, 5000, 6000, 6250, 7500, 8000, 9375, 10000, 12000, 12500, 15000, 15625, 18750, 20000, 24000, 25000, 30000, 31250, 37500, 40000, 46875, 50000, 60000, 62500, 75000, 78125, 93750, 100000, 120000, 125000, 150000, 156250, 187500, 200000, 234375, 250000, 300000, 312500, 375000, 468750, 500000, 600000, 625000, 750000, 937500, 1000000, 1250000, 1500000, 1875000, 2500000, 3000000, 3750000, 5000000, 7500000, 15000000
- Prime factorisation
- 2^6 × 3 × 5^7
- Digit sum
- 6
- Digital root
- 6
Representations
- Decimal
- 15000000
- Binary
- 111001001110000111000000
- Octal
- 71160700
- Hexadecimal
- e4e1c0
- Scientific notation
- 1.500 × 10^7
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
The Sun's core is around 15 million kelvin and its visible surface about 5,778. Energy generated at the centre takes a very long time to reach the surface it eventually leaves from.
View 5778 →Other connections
- contrasts with5778
why?
Strength 0.50, confidence "high".
Science
The Sun's core fuses hydrogen at about 15 million kelvin, and its power density is famously low — comparable to a compost heap by volume. The Sun is luminous because of its size, not because fusion is energetic per unit of matter.
DocumentedScience
Common questions
Is 15,000,000 a prime number?
No, 15,000,000 is not prime.
What are the factors of 15,000,000?
The factors of 15,000,000 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 125, 150, 160, 192, 200, 240, 250, 300, 320, 375, 400, 480, 500, 600, 625, 750, 800, 960, 1000, 1200, 1250, 1500, 1600, 1875, 2000, 2400, 2500, 3000, 3125, 3750, 4000, 4800, 5000, 6000, 6250, 7500, 8000, 9375, 10000, 12000, 12500, 15000, 15625, 18750, 20000, 24000, 25000, 30000, 31250, 37500, 40000, 46875, 50000, 60000, 62500, 75000, 78125, 93750, 100000, 120000, 125000, 150000, 156250, 187500, 200000, 234375, 250000, 300000, 312500, 375000, 468750, 500000, 600000, 625000, 750000, 937500, 1000000, 1250000, 1500000, 1875000, 2500000, 3000000, 3750000, 5000000, 7500000, 15000000.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026