Live analysis

42,749

42,749 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.).

42,749 (forty-two thousand seven hundred forty-nine) is an odd 5-digit number. It is a composite number with 8 divisors, and factors as 7 × 31 × 197. Written other ways, in hexadecimal, 0xA6FD.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

42,737 42,738 42,739 42,740 42,741 42,742 42,743 42,744 42,745 42,746 42,747 42,748 42,749 42,750 42,751 42,752 42,753 42,754 42,755 42,756 42,757 42,758 42,759 42,760 42,761

less more

Properties

Parity: Odd
Digit count: 5
Digit sum: 26
Digit product: 2,016
Digital root: 8
Palindrome: No
Bit width: 16 bits
Reversed: 94,724
Recamán's sequence: a(73,094) = 42,749
Square (n²): 1,827,477,001
Cube (n³): 78,122,814,315,749
Divisor count: 8
σ(n) — sum of divisors: 50,688
φ(n) — Euler's totient: 35,280
Sum of prime factors: 235

Primality

Prime factorization: 7 × 31 × 197

Nearest primes: 42,743 (−6) · 42,751 (+2)

Divisors & multiples

All divisors (8)

1 · 7 · 31 · 197 · 217 · 1379 · 6107 · 42749

Aliquot sum (sum of proper divisors): 7,939

Factor pairs (a × b = 42,749)

1 × 42749

7 × 6107

31 × 1379

197 × 217

First multiples

42,749 · 85,498 (double) · 128,247 · 170,996 · 213,745 · 256,494 · 299,243 · 341,992 · 384,741 · 427,490

Sums & aliquot sequence

As consecutive integers: 21,374 + 21,375 6,104 + 6,105 + … + 6,110 3,047 + 3,048 + … + 3,060 1,364 + 1,365 + … + 1,394

Aliquot sequence: 42,749 → 7,939 → 485 → 103 → 1 → 0 — terminates at zero

Continued fraction of √n

√42,749 = [206; (1, 3, 7, 3, 1, 2, 1, 1, 1, 14, 7, 2, 4, 1, 1, 15, 1, 102, 2, 3, 1, 1, 1, 3, …)]

Period length 56 — the block in parentheses repeats forever.

Representations

In words: forty-two thousand seven hundred forty-nine
Ordinal: 42749th
Binary: 1010011011111101
Octal: 123375
Hexadecimal: 0xA6FD
Base64: pv0=
One's complement: 22,786 (16-bit)
Scientific notation: 4.2749 × 10⁴
As a duration: 42,749 s = 11 hours, 52 minutes, 29 seconds

In other bases

ternary (3) 2011122022

quaternary (4) 22123331

quinary (5) 2331444

senary (6) 525525

septenary (7) 235430

nonary (9) 64568

undecimal (11) 2a133

duodecimal (12) 208a5

tridecimal (13) 165c5

tetradecimal (14) 11817

pentadecimal (15) c9ee

Palindromic in base 6

As an angle

42,749° = 118 × 360° + 269°

269° ≈ 4.695 rad

Compass bearing: W (west)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵μβψμθʹ
Mayan (base 20): 𝋥·𝋦·𝋱·𝋩
Chinese: 四萬二千七百四十九
Chinese (financial): 肆萬貳仟柒佰肆拾玖

In other modern scripts

Eastern Arabic ٤٢٧٤٩ Devanagari ४२७४९ Bengali ৪২৭৪৯ Tamil ௪௨௭௪௯ Thai ๔๒๗๔๙ Tibetan ༤༢༧༤༩ Khmer ៤២៧៤៩ Lao ໔໒໗໔໙ Burmese ၄၂၇၄၉

Digit at this position in famous constants

π — Pi (π): Digit 42,749 = 5
e — Euler's number (e): Digit 42,749 = 0
φ — Golden ratio (φ): Digit 42,749 = 7
√2 — Pythagoras's (√2): Digit 42,749 = 6
ln 2 — Natural log of 2: Digit 42,749 = 4
γ — Euler-Mascheroni (γ): Digit 42,749 = 8

Also seen as

Hex color

#00A6FD

RGB(0, 166, 253)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.253.

Address: 0.0.166.253
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.166.253

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

Position in π

The digit sequence 42749 first appears in π at position 94,743 of the decimal expansion (the 94,743ordinal-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 42749 on Pi Search ↗