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1,010,881

1,010,881 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.).

1,010,881 (one million ten thousand eight hundred eighty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF6CC1.

Arithmetic Number Chen Prime Cube-Free Deficient Number Flippable Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
1,880,101
Flips to (rotate 180°)
1,880,101
Recamán's sequence
a(360,373) = 1,010,881
Square (n²)
1,021,880,396,161
Cube (n³)
1,032,999,476,751,627,841
Divisor count
2
σ(n) — sum of divisors
1,010,882
φ(n) — Euler's totient
1,010,880

Primality

1,010,881 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1010881
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,010,881)
1 × 1010881
First multiples
1,010,881 · 2,021,762 (double) · 3,032,643 · 4,043,524 · 5,054,405 · 6,065,286 · 7,076,167 · 8,087,048 · 9,097,929 · 10,108,810

Sums & aliquot sequence

As a sum of two squares: 609² + 800²
As consecutive integers: 505,440 + 505,441

Continued fraction of √n

√1,010,881 = [1005; (2, 2, 1, 6, 1, 1, 2, 18, 1, 3, 9, 2, 5, 1, 10, 41, 1, 4, 74, 3, 1, 1, 1, 2, …)]

Representations

In words
one million ten thousand eight hundred eighty-one
Ordinal
1010881st
Binary
11110110110011000001
Octal
3666301
Hexadecimal
0xF6CC1
Base64
D2zB
One's complement
4,293,956,414 (32-bit)
Scientific notation
1.010881 × 10⁶
As a duration
1,010,881 s = 11 days, 16 hours, 48 minutes, 1 second
In other bases
ternary (3) 1220100200001
quaternary (4) 3312303001
quinary (5) 224322011
senary (6) 33400001
septenary (7) 11410114
nonary (9) 1810601
undecimal (11) 630543
duodecimal (12) 409001
tridecimal (13) 295171
tetradecimal (14) 1c457b
pentadecimal (15) 14e7c1

As an angle

1,010,881° = 2,808 × 360° + 1°
1° ≈ 0.017 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓁨𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零一萬零八百八十一
Chinese (financial)
壹佰零壹萬零捌佰捌拾壹
In other modern scripts
Eastern Arabic ١٠١٠٨٨١ Devanagari १०१०८८१ Bengali ১০১০৮৮১ Tamil ௧௦௧௦௮௮௧ Thai ๑๐๑๐๘๘๑ Tibetan ༡༠༡༠༨༨༡ Khmer ១០១០៨៨១ Lao ໑໐໑໐໘໘໑ Burmese ၁၀၁၀၈၈၁

Also seen as

Prime neighborhood

Adjacent primes:

Hex color
#0F6CC1
RGB(15, 108, 193)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.108.193.

Address
0.15.108.193
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.108.193

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 1, 0881 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 0881-10-01 (MMDYYYY (US, single-digit day))
  • 0881-01-10 (DDMYYYY (Euro, single-digit month))
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 1,010,881 and was likely granted around 1911.

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.