Live analysis

4,131

4,131 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.).

4,131 (four thousand one hundred thirty-one) is an odd 4-digit number. It is a composite number with 12 divisors, and factors as 3⁵ × 17. Written other ways, in hexadecimal, 0x1023.

Arithmetic Number Deficient Number Evil Number Harshad / Niven Recamán's Sequence

Interestingness

★ ☆ ☆ ☆ ☆

3 notable facts · grade F

4,119 4,120 4,121 4,122 4,123 4,124 4,125 4,126 4,127 4,128 4,129 4,130 4,131 4,132 4,133 4,134 4,135 4,136 4,137 4,138 4,139 4,140 4,141 4,142 4,143

less more

Properties

Parity: Odd
Digit count: 4
Digit sum: 9
Digit product: 12
Digital root: 9
Palindrome: No
Bit width: 13 bits
Reversed: 1,314
Recamán's sequence: a(28,814) = 4,131
Square (n²): 17,065,161
Cube (n³): 70,496,180,091
Divisor count: 12
σ(n) — sum of divisors: 6,552
φ(n) — Euler's totient: 2,592
Sum of prime factors: 32

Primality

Prime factorization: 3 ⁵ × 17

Nearest primes: 4,129 (−2) · 4,133 (+2)

Divisors & multiples

All divisors (12)

1 · 3 · 9 · 17 · 27 · 51 · 81 · 153 · 243 · 459 · 1377 · 4131

Aliquot sum (sum of proper divisors): 2,421

Factor pairs (a × b = 4,131)

1 × 4131

3 × 1377

9 × 459

17 × 243

27 × 153

51 × 81

First multiples

4,131 · 8,262 (double) · 12,393 · 16,524 · 20,655 · 24,786 · 28,917 · 33,048 · 37,179 · 41,310

Sums & aliquot sequence

As consecutive integers: 2,065 + 2,066 1,376 + 1,377 + 1,378 686 + 687 + 688 + 689 + 690 + 691 455 + 456 + … + 463

Aliquot sequence: 4,131 → 2,421 → 1,089 → 640 → 890 → 730 → 602 → 454 → 230 → 202 → 104 → 106 → 56 → 64 → 63 → 41 → 1 — unresolved within range

Continued fraction of √n

√4,131 = [64; (3, 1, 1, 1, 63, 1, 1, 1, 3, 128)]

Period length 10 — the block in parentheses repeats forever.

Representations

In words: four thousand one hundred thirty-one
Ordinal: 4131st
Binary: 1000000100011
Octal: 10043
Hexadecimal: 0x1023
Base64: ECM=
One's complement: 61,404 (16-bit)
Scientific notation: 4.131 × 10³
As a duration: 4,131 s = 1 hour, 8 minutes, 51 seconds

In other bases

ternary (3) 12200000

quaternary (4) 1000203

quinary (5) 113011

senary (6) 31043

septenary (7) 15021

nonary (9) 5600

undecimal (11) 3116

duodecimal (12) 2483

tridecimal (13) 1b5a

tetradecimal (14) 1711

pentadecimal (15) 1356

As an angle

4,131° = 11 × 360° + 171°

171° ≈ 2.985 rad

Compass bearing: S (south)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺
Greek (Milesian): ͵δρλαʹ
Mayan (base 20): 𝋪·𝋦·𝋫
Chinese: 四千一百三十一
Chinese (financial): 肆仟壹佰參拾壹

In other modern scripts

Eastern Arabic ٤١٣١ Devanagari ४१३१ Bengali ৪১৩১ Tamil ௪௧௩௧ Thai ๔๑๓๑ Tibetan ༤༡༣༡ Khmer ៤១៣១ Lao ໔໑໓໑ Burmese ၄၁၃၁

Digit at this position in famous constants

π — Pi (π): Digit 4,131 = 6
e — Euler's number (e): Digit 4,131 = 2
φ — Golden ratio (φ): Digit 4,131 = 6
√2 — Pythagoras's (√2): Digit 4,131 = 5
ln 2 — Natural log of 2: Digit 4,131 = 2
γ — Euler-Mascheroni (γ): Digit 4,131 = 5

Also seen as

Unicode codepoint

ဣ

Myanmar Letter I

U+1023

Other letter (Lo)

UTF-8 encoding: E1 80 A3 (3 bytes).

Lookup U+1023 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#001023

RGB(0, 16, 35)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.35.

Address: 0.0.16.35
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.16.35

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

Musical pitch

Heard as a frequency, 4,131 Hz is closest to:

Concert pitch (A4 = 440 Hz): C8 (4186 Hz, -23¢)
Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, +15¢)
Baroque pitch (A4 = 415 Hz): C♯8 (4182.9 Hz, -22¢)

Position in π

The digit sequence 4131 first appears in π at position 7,393 of the decimal expansion (the 7,393ordinal-suffix:rd 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 4131 on Pi Search ↗