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1,010,981

1,010,981 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.).

1,010,981 (one million ten thousand nine 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, 0xF6D25.

Arithmetic Number Chen Prime Cube-Free Deficient Number Evil Number Flippable Prime Pythagorean Prime Recamán's Sequence Squarefree Twin Prime

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
1,890,101
Flips to (rotate 180°)
1,860,101
Recamán's sequence
a(360,173) = 1,010,981
Square (n²)
1,022,082,582,361
Cube (n³)
1,033,306,071,197,906,141
Divisor count
2
σ(n) — sum of divisors
1,010,982
φ(n) — Euler's totient
1,010,980

Primality

1,010,981 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1010981
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,010,981)
1 × 1010981
First multiples
1,010,981 · 2,021,962 (double) · 3,032,943 · 4,043,924 · 5,054,905 · 6,065,886 · 7,076,867 · 8,087,848 · 9,098,829 · 10,109,810

Sums & aliquot sequence

As a sum of two squares: 170² + 991²
As consecutive integers: 505,490 + 505,491

Continued fraction of √n

√1,010,981 = [1005; (2, 9, 1, 2, 2, 2, 1, 4, 2, 5, 1, 35, 1, 2, 1, 1, 5, 2, 1, 11, 2, 1, 4, 4, …)]

Representations

In words
one million ten thousand nine hundred eighty-one
Ordinal
1010981st
Binary
11110110110100100101
Octal
3666445
Hexadecimal
0xF6D25
Base64
D20l
One's complement
4,293,956,314 (32-bit)
Scientific notation
1.010981 × 10⁶
As a duration
1,010,981 s = 11 days, 16 hours, 49 minutes, 41 seconds
In other bases
ternary (3) 1220100210202
quaternary (4) 3312310211
quinary (5) 224322411
senary (6) 33400245
septenary (7) 11410316
nonary (9) 1810722
undecimal (11) 630624
duodecimal (12) 409085
tridecimal (13) 29521a
tetradecimal (14) 1c460d
pentadecimal (15) 14e83b

As an angle

1,010,981° = 2,808 × 360° + 101°
101° ≈ 1.763 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零一萬零九百八十一
Chinese (financial)
壹佰零壹萬零玖佰捌拾壹
In other modern scripts
Eastern Arabic ١٠١٠٩٨١ Devanagari १०१०९८१ Bengali ১০১০৯৮১ Tamil ௧௦௧௦௯௮௧ Thai ๑๐๑๐๙๘๑ Tibetan ༡༠༡༠༩༨༡ Khmer ១០១០៩៨១ Lao ໑໐໑໐໙໘໑ Burmese ၁၀၁၀၉၈၁

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: twin with 1010983.

Hex color
#0F6D25
RGB(15, 109, 37)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.109.37.

Address
0.15.109.37
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.109.37

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 0981 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 0981-10-01 (MMDYYYY (US, single-digit day))
  • 0981-01-10 (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 1,010,981 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.