Number

12,743

12,743 is a prime, odd.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Emirp Evil Number Happy Number Prime Recamán's Sequence Squarefree

Properties

Parity: Odd
Digit count: 5
Digit sum: 17
Digit product: 168
Digital root: 8
Palindrome: No
Bit width: 14 bits
Reversed: 34,721
Recamán's sequence: a(48,789) = 12,743
Square (n²): 162,384,049
Cube (n³): 2,069,259,936,407
Divisor count: 2
σ(n) — sum of divisors: 12,744
φ(n) — Euler's totient: 12,742

Primality

12,743 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 12743

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 12,743)

1 × 12743

First multiples

12,743 · 25,486 (double) · 38,229 · 50,972 · 63,715 · 76,458 · 89,201 · 101,944 · 114,687 · 127,430

Sums & aliquot sequence

As consecutive integers: 6,371 + 6,372

Representations

In words: twelve thousand seven hundred forty-three
Ordinal: 12743rd
Binary: 11000111000111
Octal: 30707
Hexadecimal: 0x31C7
Base64: Mcc=
One's complement: 52,792 (16-bit)

In other bases

ternary (3) 122110222

quaternary (4) 3013013

quinary (5) 401433

senary (6) 134555

septenary (7) 52103

nonary (9) 18428

undecimal (11) 9635

duodecimal (12) 745b

tridecimal (13) 5a53

tetradecimal (14) 4903

pentadecimal (15) 3b98

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): ͵ιβψμγʹ
Mayan (base 20): 𝋡·𝋫·𝋱·𝋣
Chinese: 一萬二千七百四十三
Chinese (financial): 壹萬貳仟柒佰肆拾參

In other modern scripts

Eastern Arabic ١٢٧٤٣ Devanagari १२७४३ Bengali ১২৭৪৩ Tamil ௧௨௭௪௩ Thai ๑๒๗๔๓ Tibetan ༡༢༧༤༣ Khmer ១២៧៤៣ Lao ໑໒໗໔໓ Burmese ၁၂၇၄၃

Digit at this position in famous constants

π — Pi (π): Digit 12,743 = 4
e — Euler's number (e): Digit 12,743 = 8
φ — Golden ratio (φ): Digit 12,743 = 7
√2 — Pythagoras's (√2): Digit 12,743 = 2
ln 2 — Natural log of 2: Digit 12,743 = 1
γ — Euler-Mascheroni (γ): Digit 12,743 = 7

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 12,739 (gap of 4)
Next prime: 12,757 (gap of 14)

Pair status: cousin with 12739.

Unicode codepoint

㇇

CJK Stroke Hp

U+31C7

Other symbol (So)

UTF-8 encoding: E3 87 87 (3 bytes).

Lookup U+31C7 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0031C7

RGB(0, 49, 199)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.49.199.

Address: 0.0.49.199
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.49.199

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

Position in π

The digit sequence 12743 first appears in π at position 131,945 of the decimal expansion (the 131,945ordinal-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 12743 on Pi Search ↗