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990,497

990,497 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.).

990,497 (nine hundred ninety thousand four hundred ninety-seven) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF1D21.

Arithmetic Number Chen Prime Cube-Free Deficient Number Evil Number Prime Pythagorean Prime Self Number Sexy Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
38
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
794,099
Square (n²)
981,084,307,009
Cube (n³)
971,761,062,839,493,473
Divisor count
2
σ(n) — sum of divisors
990,498
φ(n) — Euler's totient
990,496

Primality

990,497 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 990497
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 990,497)
1 × 990497
First multiples
990,497 · 1,980,994 (double) · 2,971,491 · 3,961,988 · 4,952,485 · 5,942,982 · 6,933,479 · 7,923,976 · 8,914,473 · 9,904,970

Sums & aliquot sequence

As a sum of two squares: 604² + 791²
As consecutive integers: 495,248 + 495,249

Continued fraction of √n

√990,497 = [995; (4, 4, 1, 1, 1, 1, 1, 1, 3, 1, 4, 1, 3, 5, 2, 1, 1, 1, 5, 1, 3, 2, 1, 1, …)]

Representations

In words
nine hundred ninety thousand four hundred ninety-seven
Ordinal
990497th
Binary
11110001110100100001
Octal
3616441
Hexadecimal
0xF1D21
Base64
Dx0h
One's complement
4,293,976,798 (32-bit)
Scientific notation
9.90497 × 10⁵
As a duration
990,497 s = 11 days, 11 hours, 8 minutes, 17 seconds
In other bases
ternary (3) 1212022201002
quaternary (4) 3301310201
quinary (5) 223143442
senary (6) 33121345
septenary (7) 11263514
nonary (9) 1768632
undecimal (11) 6171a2
duodecimal (12) 3b9255
tridecimal (13) 288ac1
tetradecimal (14) 1bad7b
pentadecimal (15) 148732

As an angle

990,497° = 2,751 × 360° + 137°
137° ≈ 2.391 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡϟυϟζʹ
Chinese
九十九萬零四百九十七
Chinese (financial)
玖拾玖萬零肆佰玖拾柒
In other modern scripts
Eastern Arabic ٩٩٠٤٩٧ Devanagari ९९०४९७ Bengali ৯৯০৪৯৭ Tamil ௯௯௦௪௯௭ Thai ๙๙๐๔๙๗ Tibetan ༩༩༠༤༩༧ Khmer ៩៩០៤៩៧ Lao ໙໙໐໔໙໗ Burmese ၉၉၀၄၉၇

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: sexy with 990503.

Hex color
#0F1D21
RGB(15, 29, 33)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.29.33.

Address
0.15.29.33
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.29.33

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 990,497 and was likely granted around 1911.

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

Position in π

The digit sequence 990497 first appears in π at position 625,115 of the decimal expansion (the 625,115ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.