Live analysis

142,242

142,242 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.).

142,242 (one hundred forty-two thousand two hundred forty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 151 × 157. Its proper divisors sum to 145,950, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22BA2.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

142,230 142,231 142,232 142,233 142,234 142,235 142,236 142,237 142,238 142,239 142,240 142,241 142,242 142,243 142,244 142,245 142,246 142,247 142,248 142,249 142,250 142,251 142,252 142,253 142,254

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 15
Digit product: 128
Digital root: 6
Palindrome: No
Bit width: 18 bits
Reversed: 242,241
Recamán's sequence: a(39,796) = 142,242
Square (n²): 20,232,786,564
Cube (n³): 2,877,952,026,436,488
Divisor count: 16
σ(n) — sum of divisors: 288,192
φ(n) — Euler's totient: 46,800
Sum of prime factors: 313

Primality

Prime factorization: 2 × 3 × 151 × 157

Nearest primes: 142,237 (−5) · 142,271 (+29)

Divisors & multiples

All divisors (16)

1 · 2 · 3 · 6 · 151 · 157 · 302 · 314 · 453 · 471 · 906 · 942 · 23707 · 47414 · 71121 (half) · 142242

Aliquot sum (sum of proper divisors): 145,950

Factor pairs (a × b = 142,242)

1 × 142242

2 × 71121

3 × 47414

6 × 23707

151 × 942

157 × 906

302 × 471

314 × 453

First multiples

142,242 · 284,484 (double) · 426,726 · 568,968 · 711,210 · 853,452 · 995,694 · 1,137,936 · 1,280,178 · 1,422,420

Sums & aliquot sequence

As consecutive integers: 47,413 + 47,414 + 47,415 35,559 + 35,560 + 35,561 + 35,562 11,848 + 11,849 + … + 11,859 867 + 868 + … + 1,017

Aliquot sequence: 142,242 → 145,950 → 270,690 → 472,350 → 741,858 → 856,158 → 911,778 → 1,296,606 → 1,380,642 → 1,380,654 → 2,063,826 → 2,522,574 → 2,943,042 → 3,031,710 → 4,906,722 → 4,906,734 → 6,308,754 — unresolved within range

Continued fraction of √n

√142,242 = [377; (6, 1, 2, 15, 22, 1, 3, 1, 4, 2, 10, 5, 1, 5, 2, 1, 1, 18, 1, 2, 1, 23, 1, 1, …)]

Representations

In words: one hundred forty-two thousand two hundred forty-two
Ordinal: 142242nd
Binary: 100010101110100010
Octal: 425642
Hexadecimal: 0x22BA2
Base64: Aiui
One's complement: 4,294,825,053 (32-bit)
Scientific notation: 1.42242 × 10⁵
As a duration: 142,242 s = 1 day, 15 hours, 30 minutes, 42 seconds

In other bases

ternary (3) 21020010020

quaternary (4) 202232202

quinary (5) 14022432

senary (6) 3014310

septenary (7) 1131462

nonary (9) 236106

undecimal (11) 97961

duodecimal (12) 6a396

tridecimal (13) 4c989

tetradecimal (14) 39ba2

pentadecimal (15) 2c22c

Palindromic in base 4

As an angle

142,242° = 395 × 360° + 42°

42° ≈ 0.733 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵ρμβσμβʹ
Mayan (base 20): 𝋱·𝋯·𝋬·𝋢
Chinese: 一十四萬二千二百四十二
Chinese (financial): 壹拾肆萬貳仟貳佰肆拾貳

In other modern scripts

Eastern Arabic ١٤٢٢٤٢ Devanagari १४२२४२ Bengali ১৪২২৪২ Tamil ௧௪௨௨௪௨ Thai ๑๔๒๒๔๒ Tibetan ༡༤༢༢༤༢ Khmer ១៤២២៤២ Lao ໑໔໒໒໔໒ Burmese ၁၄၂၂၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142242, here are decompositions:

5 + 142237 = 142242
11 + 142231 = 142242
19 + 142223 = 142242
31 + 142211 = 142242
53 + 142189 = 142242
59 + 142183 = 142242
73 + 142169 = 142242
83 + 142159 = 142242

Showing the first eight; more decompositions exist.

Unicode codepoint

𢮢

CJK Unified Ideograph-22Ba2

U+22BA2

Other letter (Lo)

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

Lookup U+22BA2 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#022BA2

RGB(2, 43, 162)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.162.

Address: 0.2.43.162
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.43.162

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 142,242 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 US142,242 on Google Patents ↗ Look up on USPTO ↗

Position in π

The digit sequence 142242 first appears in π at position 934,311 of the decimal expansion (the 934,311ordinal-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 142242 on Pi Search ↗