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Number

41,999

41,999 is a prime, odd.

41,999 (forty-one thousand nine hundred ninety-nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xA40F.

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

Interestingness

Properties

Parity
Odd
Digit count
5
Digit sum
32
Digit product
2,916
Digital root
5
Palindrome
No
Bit width
16 bits
Reversed
99,914
Recamán's sequence
a(151,625) = 41,999
Square (n²)
1,763,916,001
Cube (n³)
74,082,708,125,999
Divisor count
2
σ(n) — sum of divisors
42,000
φ(n) — Euler's totient
41,998

Primality

41,999 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 41999
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 41,999)
1 × 41999
First multiples
41,999 · 83,998 (double) · 125,997 · 167,996 · 209,995 · 251,994 · 293,993 · 335,992 · 377,991 · 419,990

Sums & aliquot sequence

As consecutive integers: 20,999 + 21,000

Continued fraction of √n

√41,999 = [204; (1, 14, 1, 3, 3, 2, 8, 2, 10, 3, 5, 2, 4, 2, 12, 1, 3, 2, 1, 1, 2, 1, 36, 1, …)]

Representations

In words
forty-one thousand nine hundred ninety-nine
Ordinal
41999th
Binary
1010010000001111
Octal
122017
Hexadecimal
0xA40F
Base64
pA8=
One's complement
23,536 (16-bit)
Scientific notation
4.1999 × 10⁴
As a duration
41,999 s = 11 hours, 39 minutes, 59 seconds
In other bases
ternary (3) 2010121112
quaternary (4) 22100033
quinary (5) 2320444
senary (6) 522235
septenary (7) 233306
nonary (9) 63545
undecimal (11) 29611
duodecimal (12) 2037b
tridecimal (13) 16169
tetradecimal (14) 1143d
pentadecimal (15) c69e

As an angle

41,999° = 116 × 360° + 239°
239° ≈ 4.171 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μαϡϟθʹ
Mayan (base 20)
𝋥·𝋤·𝋳·𝋳
Chinese
四萬一千九百九十九
Chinese (financial)
肆萬壹仟玖佰玖拾玖
In other modern scripts
Eastern Arabic ٤١٩٩٩ Devanagari ४१९९९ Bengali ৪১৯৯৯ Tamil ௪௧௯௯௯ Thai ๔๑๙๙๙ Tibetan ༤༡༩༩༩ Khmer ៤១៩៩៩ Lao ໔໑໙໙໙ Burmese ၄၁၉၉၉

Digit at this position in famous constants

π — Pi (π)
Digit 41,999 = 8
e — Euler's number (e)
Digit 41,999 = 2
φ — Golden ratio (φ)
Digit 41,999 = 6
√2 — Pythagoras's (√2)
Digit 41,999 = 4
ln 2 — Natural log of 2
Digit 41,999 = 1
γ — Euler-Mascheroni (γ)
Digit 41,999 = 0

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 41,983 (gap of 16)
  • Next prime: 42,013 (gap of 14)
Unicode codepoint
Yi Syllable Qup
U+A40F
Other letter (Lo)

UTF-8 encoding: EA 90 8F (3 bytes).

Hex color
#00A40F
RGB(0, 164, 15)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.15.

Address
0.0.164.15
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.164.15

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

Position in π

The digit sequence 41999 first appears in π at position 157,785 of the decimal expansion (the 157,785ordinal-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.
  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.