Live analysis

4,081

4,081 is a composite number, 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.).

Arithmetic Number Deficient Number Odious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity: Odd
Digit count: 4
Digit sum: 13
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 12 bits
Reversed: 1,804
Recamán's sequence: a(14,229) = 4,081
Square (n²): 16,654,561
Cube (n³): 67,967,263,441
Divisor count: 8
σ(n) — sum of divisors: 5,184
φ(n) — Euler's totient: 3,120
Sum of prime factors: 71

Primality

Prime factorization: 7 × 11 × 53

Nearest primes: 4,079 (−2) · 4,091 (+10)

Divisors & multiples

All divisors (8)

1 · 7 · 11 · 53 · 77 · 371 · 583 · 4081

Aliquot sum (sum of proper divisors): 1,103

Factor pairs (a × b = 4,081)

1 × 4081

7 × 583

11 × 371

53 × 77

First multiples

4,081 · 8,162 (double) · 12,243 · 16,324 · 20,405 · 24,486 · 28,567 · 32,648 · 36,729 · 40,810

Sums & aliquot sequence

As consecutive integers: 2,040 + 2,041 580 + 581 + … + 586 366 + 367 + … + 376 285 + 286 + … + 298

Aliquot sequence: 4,081 → 1,103 → 1 → 0 — terminates at zero

Representations

In words: four thousand eighty-one
Ordinal: 4081st
Binary: 111111110001
Octal: 7761
Hexadecimal: 0xFF1
Base64: D/E=
One's complement: 61,454 (16-bit)

In other bases

ternary (3) 12121011

quaternary (4) 333301

quinary (5) 112311

senary (6) 30521

septenary (7) 14620

nonary (9) 5534

undecimal (11) 3080

duodecimal (12) 2441

tridecimal (13) 1b1c

tetradecimal (14) 16b7

pentadecimal (15) 1321

Historical numeral systems

Babylonian (base 60): 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): ͵δπαʹ
Mayan (base 20): 𝋪·𝋤·𝋡
Chinese: 四千零八十一
Chinese (financial): 肆仟零捌拾壹

In other modern scripts

Eastern Arabic ٤٠٨١ Devanagari ४०८१ Bengali ৪০৮১ Tamil ௪௦௮௧ Thai ๔๐๘๑ Tibetan ༤༠༨༡ Khmer ៤០៨១ Lao ໔໐໘໑ Burmese ၄၀၈၁

Digit at this position in famous constants

π — Pi (π): Digit 4,081 = 9
e — Euler's number (e): Digit 4,081 = 3
φ — Golden ratio (φ): Digit 4,081 = 9
√2 — Pythagoras's (√2): Digit 4,081 = 1
ln 2 — Natural log of 2: Digit 4,081 = 5
γ — Euler-Mascheroni (γ): Digit 4,081 = 2

Also seen as

Hex color

#000FF1

RGB(0, 15, 241)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.241.

Address: 0.0.15.241
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.15.241

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

Position in π

The digit sequence 4081 first appears in π at position 145 of the decimal expansion (the 145ordinal-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.

Look up 4081 on Pi Search ↗