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999,749

999,749 is a prime, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Arithmetic Number Chen Prime Cube-Free Deficient Number Odious Number Prime Pythagorean Prime Sophie Germain Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
47
Digit product
183,708
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
947,999
Square (n²)
999,498,063,001
Cube (n³)
999,247,188,987,186,749
Divisor count
2
σ(n) — sum of divisors
999,750
φ(n) — Euler's totient
999,748

Primality

999,749 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 999749
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 999,749)
1 × 999749
First multiples
999,749 · 1,999,498 (double) · 2,999,247 · 3,998,996 · 4,998,745 · 5,998,494 · 6,998,243 · 7,997,992 · 8,997,741 · 9,997,490

Sums & aliquot sequence

As a sum of two squares: 575² + 818²
As consecutive integers: 499,874 + 499,875

Continued fraction of √n

√999,749 = [999; (1, 6, 1, 29, 1, 8, 8, 5, 2, 1, 2, 3, 8, 14, 6, 8, 3, 4, 5, 6, 3, 3, 6, 5, …)]

Period length 43 — the block in parentheses repeats forever.

Representations

In words
nine hundred ninety-nine thousand seven hundred forty-nine
Ordinal
999749th
Binary
11110100000101000101
Octal
3640505
Hexadecimal
0xF4145
Base64
D0FF
One's complement
4,293,967,546 (32-bit)
Scientific notation
9.99749 × 10⁵
As a duration
999,749 s = 11 days, 13 hours, 42 minutes, 29 seconds
In other bases
ternary (3) 1212210101202
quaternary (4) 3310011011
quinary (5) 223442444
senary (6) 33232245
septenary (7) 11332502
nonary (9) 1783352
undecimal (11) 623143
duodecimal (12) 402685
tridecimal (13) 29008a
tetradecimal (14) 1c04a9
pentadecimal (15) 14b34e

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡϟθψμθʹ
Chinese
九十九萬九千七百四十九
Chinese (financial)
玖拾玖萬玖仟柒佰肆拾玖
In other modern scripts
Eastern Arabic ٩٩٩٧٤٩ Devanagari ९९९७४९ Bengali ৯৯৯৭৪৯ Tamil ௯௯௯௭௪௯ Thai ๙๙๙๗๔๙ Tibetan ༩༩༩༧༤༩ Khmer ៩៩៩៧៤៩ Lao ໙໙໙໗໔໙ Burmese ၉၉၉၇၄၉

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#0F4145
RGB(15, 65, 69)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.65.69.

Address
0.15.65.69
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.65.69

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 999,749 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.