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1,040,161

1,040,161 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.).

1,040,161 (one million forty thousand one hundred sixty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xFDF21.

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

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
1,610,401
Square (n²)
1,081,934,905,921
Cube (n³)
1,125,386,493,677,693,281
Divisor count
2
σ(n) — sum of divisors
1,040,162
φ(n) — Euler's totient
1,040,160

Primality

1,040,161 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1040161
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,040,161)
1 × 1040161
First multiples
1,040,161 · 2,080,322 (double) · 3,120,483 · 4,160,644 · 5,200,805 · 6,240,966 · 7,281,127 · 8,321,288 · 9,361,449 · 10,401,610

Sums & aliquot sequence

As a sum of two squares: 556² + 855²
As consecutive integers: 520,080 + 520,081

Continued fraction of √n

√1,040,161 = [1019; (1, 7, 1, 1, 6, 1, 1, 1, 2, 5, 1, 1, 226, 10, 5, 6, 1, 24, 1, 1, 1, 2, 1, 24, …)]

Representations

In words
one million forty thousand one hundred sixty-one
Ordinal
1040161st
Binary
11111101111100100001
Octal
3757441
Hexadecimal
0xFDF21
Base64
D98h
One's complement
4,293,927,134 (32-bit)
Scientific notation
1.040161 × 10⁶
As a duration
1,040,161 s = 12 days, 56 minutes, 1 second
In other bases
ternary (3) 1221211211111
quaternary (4) 3331330201
quinary (5) 231241121
senary (6) 34143321
septenary (7) 11561353
nonary (9) 1854744
undecimal (11) 650541
duodecimal (12) 421b41
tridecimal (13) 2a55a5
tetradecimal (14) 1d10d3
pentadecimal (15) 1582e1

As an angle

1,040,161° = 2,889 × 360° + 121°
121° ≈ 2.112 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百零四萬零一百六十一
Chinese (financial)
壹佰零肆萬零壹佰陸拾壹
In other modern scripts
Eastern Arabic ١٠٤٠١٦١ Devanagari १०४०१६१ Bengali ১০৪০১৬১ Tamil ௧௦௪௦௧௬௧ Thai ๑๐๔๐๑๖๑ Tibetan ༡༠༤༠༡༦༡ Khmer ១០៤០១៦១ Lao ໑໐໔໐໑໖໑ Burmese ၁၀၄၀၁၆၁

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: twin with 1040159, sexy with 1040167.

Hex color
#0FDF21
RGB(15, 223, 33)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.223.33.

Address
0.15.223.33
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.223.33

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 4, 0161 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0161-04-01 (DMMYYYY (Euro, single-digit day))
  • 0161-10-04 (MMDYYYY (US, single-digit day))
  • 0161-04-10 (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 1,040,161 and was likely granted around 1912.

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.