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971,561

971,561 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.).

971,561 (nine hundred seventy-one thousand five hundred sixty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xED329.

Arithmetic Number Chen Prime Cube-Free Deficient Number Happy Number Odious Number Pernicious Number Prime Pythagorean Prime Squarefree Twin Prime

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
29
Digit product
1,890
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
165,179
Square (n²)
943,930,776,721
Cube (n³)
917,086,329,361,831,481
Divisor count
2
σ(n) — sum of divisors
971,562
φ(n) — Euler's totient
971,560

Primality

971,561 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 971561
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 971,561)
1 × 971561
First multiples
971,561 · 1,943,122 (double) · 2,914,683 · 3,886,244 · 4,857,805 · 5,829,366 · 6,800,927 · 7,772,488 · 8,744,049 · 9,715,610

Sums & aliquot sequence

As a sum of two squares: 244² + 955²
As consecutive integers: 485,780 + 485,781

Continued fraction of √n

√971,561 = [985; (1, 2, 9, 1, 1, 10, 5, 3, 3, 1, 2, 1, 1, 1, 16, 1, 4, 3, 2, 1, 30, 9, 1, 1, …)]

Representations

In words
nine hundred seventy-one thousand five hundred sixty-one
Ordinal
971561st
Binary
11101101001100101001
Octal
3551451
Hexadecimal
0xED329
Base64
DtMp
One's complement
4,293,995,734 (32-bit)
Scientific notation
9.71561 × 10⁵
As a duration
971,561 s = 11 days, 5 hours, 52 minutes, 41 seconds
In other bases
ternary (3) 1211100201202
quaternary (4) 3231030221
quinary (5) 222042221
senary (6) 32453545
septenary (7) 11154353
nonary (9) 1740652
undecimal (11) 603a48
duodecimal (12) 3aa2b5
tridecimal (13) 2802b6
tetradecimal (14) 1b40d3
pentadecimal (15) 142d0b

As an angle

971,561° = 2,698 × 360° + 281°
281° ≈ 4.904 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ϡοαφξαʹ
Chinese
九十七萬一千五百六十一
Chinese (financial)
玖拾柒萬壹仟伍佰陸拾壹
In other modern scripts
Eastern Arabic ٩٧١٥٦١ Devanagari ९७१५६१ Bengali ৯৭১৫৬১ Tamil ௯௭௧௫௬௧ Thai ๙๗๑๕๖๑ Tibetan ༩༧༡༥༦༡ Khmer ៩៧១៥៦១ Lao ໙໗໑໕໖໑ Burmese ၉၇၁၅၆၁

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: twin with 971563.

Hex color
#0ED329
RGB(14, 211, 41)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.14.211.41.

Address
0.14.211.41
Class
reserved
IPv4-mapped IPv6
::ffff:0.14.211.41

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 971,561 and was likely granted around 1910.

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

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.