Live analysis

42,102

42,102 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.).

42,102 (forty-two thousand one hundred two) is an even 5-digit number. It is a composite number with 12 divisors, and factors as 2 × 3² × 2,339. Its proper divisors sum to 49,158, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xA476.

Abundant Number Arithmetic Number Cube-Free Evil Number Harshad / Niven Recamán's Sequence Semiperfect Number

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

42,090 42,091 42,092 42,093 42,094 42,095 42,096 42,097 42,098 42,099 42,100 42,101 42,102 42,103 42,104 42,105 42,106 42,107 42,108 42,109 42,110 42,111 42,112 42,113 42,114

less more

Properties

Parity: Even
Digit count: 5
Digit sum: 9
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 16 bits
Reversed: 20,124
Recamán's sequence: a(151,419) = 42,102
Square (n²): 1,772,578,404
Cube (n³): 74,629,095,965,208
Divisor count: 12
σ(n) — sum of divisors: 91,260
φ(n) — Euler's totient: 14,028
Sum of prime factors: 2,347

Primality

Prime factorization: 2 × 3 ² × 2339

Nearest primes: 42,101 (−1) · 42,131 (+29)

Divisors & multiples

All divisors (12)

1 · 2 · 3 · 6 · 9 · 18 · 2339 · 4678 · 7017 · 14034 · 21051 (half) · 42102

Aliquot sum (sum of proper divisors): 49,158

Factor pairs (a × b = 42,102)

1 × 42102

2 × 21051

3 × 14034

6 × 7017

9 × 4678

18 × 2339

First multiples

42,102 · 84,204 (double) · 126,306 · 168,408 · 210,510 · 252,612 · 294,714 · 336,816 · 378,918 · 421,020

Sums & aliquot sequence

As consecutive integers: 14,033 + 14,034 + 14,035 10,524 + 10,525 + 10,526 + 10,527 4,674 + 4,675 + … + 4,682 3,503 + 3,504 + … + 3,514

Aliquot sequence: 42,102 → 49,158 → 57,390 → 80,418 → 92,958 → 92,970 → 148,986 → 196,614 → 281,466 → 361,254 → 361,266 → 399,534 → 446,754 → 668,382 → 1,025,058 → 1,025,070 → 1,490,898 — unresolved within range

Continued fraction of √n

√42,102 = [205; (5, 3, 17, 1, 1, 7, 1, 6, 5, 5, 2, 2, 1, 14, 2, 21, 8, 1, 2, 5, 1, 3, 1, 1, …)]

Representations

In words: forty-two thousand one hundred two
Ordinal: 42102nd
Binary: 1010010001110110
Octal: 122166
Hexadecimal: 0xA476
Base64: pHY=
One's complement: 23,433 (16-bit)
Scientific notation: 4.2102 × 10⁴
As a duration: 42,102 s = 11 hours, 41 minutes, 42 seconds

In other bases

ternary (3) 2010202100

quaternary (4) 22101312

quinary (5) 2321402

senary (6) 522530

septenary (7) 233514

nonary (9) 63670

undecimal (11) 296a5

duodecimal (12) 20446

tridecimal (13) 16218

tetradecimal (14) 114b4

pentadecimal (15) c71c

As an angle

42,102° = 116 × 360° + 342°

342° ≈ 5.969 rad

Compass bearing: NNW (north-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺
Greek (Milesian): ͵μβρβʹ
Mayan (base 20): 𝋥·𝋥·𝋥·𝋢
Chinese: 四萬二千一百零二
Chinese (financial): 肆萬貳仟壹佰零貳

In other modern scripts

Eastern Arabic ٤٢١٠٢ Devanagari ४२१०२ Bengali ৪২১০২ Tamil ௪௨௧௦௨ Thai ๔๒๑๐๒ Tibetan ༤༢༡༠༢ Khmer ៤២១០២ Lao ໔໒໑໐໒ Burmese ၄၂၁၀၂

Digit at this position in famous constants

π — Pi (π): Digit 42,102 = 8
e — Euler's number (e): Digit 42,102 = 2
φ — Golden ratio (φ): Digit 42,102 = 7
√2 — Pythagoras's (√2): Digit 42,102 = 6
ln 2 — Natural log of 2: Digit 42,102 = 7
γ — Euler-Mascheroni (γ): Digit 42,102 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42102, here are decompositions:

13 + 42089 = 42102
19 + 42083 = 42102
29 + 42073 = 42102
31 + 42071 = 42102
41 + 42061 = 42102
59 + 42043 = 42102
79 + 42023 = 42102
83 + 42019 = 42102

Showing the first eight; more decompositions exist.

Unicode codepoint

ꑶ

Yi Syllable Yiex

U+A476

Other letter (Lo)

UTF-8 encoding: EA 91 B6 (3 bytes).

Lookup U+A476 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00A476

RGB(0, 164, 118)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.118.

Address: 0.0.164.118
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.164.118

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

Position in π

The digit sequence 42102 first appears in π at position 44,295 of the decimal expansion (the 44,295ordinal-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 42102 on Pi Search ↗