Live analysis

142,020

142,020 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.).

142,020 (one hundred forty-two thousand twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3³ × 5 × 263. Its proper divisors sum to 301,500, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22AC4.

Abundant Number Arithmetic Number Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

142,008 142,009 142,010 142,011 142,012 142,013 142,014 142,015 142,016 142,017 142,018 142,019 142,020 142,021 142,022 142,023 142,024 142,025 142,026 142,027 142,028 142,029 142,030 142,031 142,032

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 9
Digit product: 0
Digital root: 9
Palindrome: No
Bit width: 18 bits
Reversed: 20,241
Recamán's sequence: a(484,787) = 142,020
Square (n²): 20,169,680,400
Cube (n³): 2,864,498,010,408,000
Divisor count: 48
σ(n) — sum of divisors: 443,520
φ(n) — Euler's totient: 37,728
Sum of prime factors: 281

Primality

Prime factorization: 2 ² × 3 ³ × 5 × 263

Nearest primes: 142,019 (−1) · 142,031 (+11)

Divisors & multiples

All divisors (48)

1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 20 · 27 · 30 · 36 · 45 · 54 · 60 · 90 · 108 · 135 · 180 · 263 · 270 · 526 · 540 · 789 · 1052 · 1315 · 1578 · 2367 · 2630 · 3156 · 3945 · 4734 · 5260 · 7101 · 7890 · 9468 · 11835 · 14202 · 15780 · 23670 · 28404 · 35505 · 47340 · 71010 (half) · 142020

Aliquot sum (sum of proper divisors): 301,500

Factor pairs (a × b = 142,020)

1 × 142020

2 × 71010

3 × 47340

4 × 35505

5 × 28404

6 × 23670

9 × 15780

10 × 14202

12 × 11835

15 × 9468

18 × 7890

20 × 7101

27 × 5260

30 × 4734

36 × 3945

45 × 3156

54 × 2630

60 × 2367

90 × 1578

108 × 1315

135 × 1052

180 × 789

263 × 540

270 × 526

First multiples

142,020 · 284,040 (double) · 426,060 · 568,080 · 710,100 · 852,120 · 994,140 · 1,136,160 · 1,278,180 · 1,420,200

Sums & aliquot sequence

As consecutive integers: 47,339 + 47,340 + 47,341 28,402 + 28,403 + 28,404 + 28,405 + 28,406 17,749 + 17,750 + … + 17,756 15,776 + 15,777 + … + 15,784

Aliquot sequence: 142,020 → 301,500 → 663,828 → 1,077,996 → 1,437,356 → 1,164,964 → 884,300 → 1,094,740 → 1,227,692 → 961,684 → 721,270 → 730,250 → 707,446 → 409,634 → 224,734 → 114,386 → 57,196 — unresolved within range

Continued fraction of √n

√142,020 = [376; (1, 5, 1, 10, 1, 11, 2, 3, 1, 2, 5, 1, 36, 1, 5, 2, 1, 3, 2, 11, 1, 10, 1, 5, …)]

Period length 26 — the block in parentheses repeats forever.

Representations

In words: one hundred forty-two thousand twenty
Ordinal: 142020th
Binary: 100010101011000100
Octal: 425304
Hexadecimal: 0x22AC4
Base64: AirE
One's complement: 4,294,825,275 (32-bit)
Scientific notation: 1.4202 × 10⁵
As a duration: 142,020 s = 1 day, 15 hours, 27 minutes

In other bases

ternary (3) 21012211000

quaternary (4) 202223010

quinary (5) 14021040

senary (6) 3013300

septenary (7) 1131024

nonary (9) 235730

undecimal (11) 9777a

duodecimal (12) 6a230

tridecimal (13) 4c848

tetradecimal (14) 39a84

pentadecimal (15) 2c130

As an angle

142,020° = 394 × 360° + 180°

180° ≈ 3.142 rad

Compass bearing: S (south)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆
Greek (Milesian): ͵ρμβκʹ
Mayan (base 20): 𝋱·𝋯·𝋡·𝋠
Chinese: 一十四萬二千零二十
Chinese (financial): 壹拾肆萬貳仟零貳拾

In other modern scripts

Eastern Arabic ١٤٢٠٢٠ Devanagari १४२०२० Bengali ১৪২০২০ Tamil ௧௪௨௦௨௦ Thai ๑๔๒๐๒๐ Tibetan ༡༤༢༠༢༠ Khmer ១៤២០២០ Lao ໑໔໒໐໒໐ Burmese ၁၄၂၀၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142020, here are decompositions:

13 + 142007 = 142020
29 + 141991 = 142020
59 + 141961 = 142020
61 + 141959 = 142020
79 + 141941 = 142020
83 + 141937 = 142020
89 + 141931 = 142020
103 + 141917 = 142020

Showing the first eight; more decompositions exist.

Unicode codepoint

𢫄

CJK Unified Ideograph-22Ac4

U+22AC4

Other letter (Lo)

UTF-8 encoding: F0 A2 AB 84 (4 bytes).

Lookup U+22AC4 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#022AC4

RGB(2, 42, 196)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.196.

Address: 0.2.42.196
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.42.196

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 142,020 and was likely granted around 1872.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Look up US142,020 on Google Patents ↗ Look up on USPTO ↗

Position in π

The digit sequence 142020 first appears in π at position 692,017 of the decimal expansion (the 692,017ordinal-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 142020 on Pi Search ↗