Live analysis

42,942

42,942 is a composite number, even.

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.).

42,942 (forty-two thousand nine hundred forty-two) is an even 5-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 17 × 421. Its proper divisors sum to 48,210, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xA7BE.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Recamán's Sequence Semiperfect Number Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

42,930 42,931 42,932 42,933 42,934 42,935 42,936 42,937 42,938 42,939 42,940 42,941 42,942 42,943 42,944 42,945 42,946 42,947 42,948 42,949 42,950 42,951 42,952 42,953 42,954

less more

Properties

Parity: Even
Digit count: 5
Digit sum: 21
Digit product: 576
Digital root: 3
Palindrome: No
Bit width: 16 bits
Reversed: 24,924
Recamán's sequence: a(72,708) = 42,942
Square (n²): 1,844,015,364
Cube (n³): 79,185,707,760,888
Divisor count: 16
σ(n) — sum of divisors: 91,152
φ(n) — Euler's totient: 13,440
Sum of prime factors: 443

Primality

Prime factorization: 2 × 3 × 17 × 421

Nearest primes: 42,937 (−5) · 42,943 (+1)

Divisors & multiples

All divisors (16)

1 · 2 · 3 · 6 · 17 · 34 · 51 · 102 · 421 · 842 · 1263 · 2526 · 7157 · 14314 · 21471 (half) · 42942

Aliquot sum (sum of proper divisors): 48,210

Factor pairs (a × b = 42,942)

1 × 42942

2 × 21471

3 × 14314

6 × 7157

17 × 2526

34 × 1263

51 × 842

102 × 421

First multiples

42,942 · 85,884 (double) · 128,826 · 171,768 · 214,710 · 257,652 · 300,594 · 343,536 · 386,478 · 429,420

Sums & aliquot sequence

As consecutive integers: 14,313 + 14,314 + 14,315 10,734 + 10,735 + 10,736 + 10,737 3,573 + 3,574 + … + 3,584 2,518 + 2,519 + … + 2,534

Aliquot sequence: 42,942 → 48,210 → 67,566 → 67,578 → 86,982 → 124,218 → 151,590 → 226,266 → 237,318 → 250,602 → 296,310 → 574,602 → 738,870 → 1,196,490 → 1,675,158 → 1,713,882 → 1,797,990 — unresolved within range

Continued fraction of √n

√42,942 = [207; (4, 2, 4, 1, 15, 8, 15, 1, 4, 2, 4, 414)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words: forty-two thousand nine hundred forty-two
Ordinal: 42942nd
Binary: 1010011110111110
Octal: 123676
Hexadecimal: 0xA7BE
Base64: p74=
One's complement: 22,593 (16-bit)
Scientific notation: 4.2942 × 10⁴
As a duration: 42,942 s = 11 hours, 55 minutes, 42 seconds

In other bases

ternary (3) 2011220110

quaternary (4) 22132332

quinary (5) 2333232

senary (6) 530450

septenary (7) 236124

nonary (9) 64813

undecimal (11) 2a299

duodecimal (12) 20a26

tridecimal (13) 16713

tetradecimal (14) 11914

pentadecimal (15) cacc

As an angle

42,942° = 119 × 360° + 102°

102° ≈ 1.78 rad

Compass bearing: ESE (east-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵μβϡμβʹ
Mayan (base 20): 𝋥·𝋧·𝋧·𝋢
Chinese: 四萬二千九百四十二
Chinese (financial): 肆萬貳仟玖佰肆拾貳

In other modern scripts

Eastern Arabic ٤٢٩٤٢ Devanagari ४२९४२ Bengali ৪২৯৪২ Tamil ௪௨௯௪௨ Thai ๔๒๙๔๒ Tibetan ༤༢༩༤༢ Khmer ៤២៩៤២ Lao ໔໒໙໔໒ Burmese ၄၂၉၄၂

Digit at this position in famous constants

π — Pi (π): Digit 42,942 = 5
e — Euler's number (e): Digit 42,942 = 2
φ — Golden ratio (φ): Digit 42,942 = 0
√2 — Pythagoras's (√2): Digit 42,942 = 1
ln 2 — Natural log of 2: Digit 42,942 = 7
γ — Euler-Mascheroni (γ): Digit 42,942 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42942, here are decompositions:

5 + 42937 = 42942
13 + 42929 = 42942
19 + 42923 = 42942
41 + 42901 = 42942
43 + 42899 = 42942
79 + 42863 = 42942
83 + 42859 = 42942
89 + 42853 = 42942

Showing the first eight; more decompositions exist.

Unicode codepoint

Ꞿ

Latin Capital Letter Glottal U

U+A7BE

Uppercase letter (Lu)

UTF-8 encoding: EA 9E BE (3 bytes).

Lookup U+A7BE on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00A7BE

RGB(0, 167, 190)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.190.

Address: 0.0.167.190
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.167.190

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

Position in π

The digit sequence 42942 first appears in π at position 10,087 of the decimal expansion (the 10,087ordinal-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 42942 on Pi Search ↗