Live analysis

142,221

142,221 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.).

142,221 (one hundred forty-two thousand two hundred twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 3 × 47,407. Written other ways, in hexadecimal, 0x22B8D.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

142,209 142,210 142,211 142,212 142,213 142,214 142,215 142,216 142,217 142,218 142,219 142,220 142,221 142,222 142,223 142,224 142,225 142,226 142,227 142,228 142,229 142,230 142,231 142,232 142,233

less more

Properties

Parity: Odd
Digit count: 6
Digit sum: 12
Digit product: 32
Digital root: 3
Palindrome: No
Bit width: 18 bits
Reversed: 122,241
Recamán's sequence: a(39,754) = 142,221
Square (n²): 20,226,812,841
Cube (n³): 2,876,677,549,059,861
Divisor count: 4
σ(n) — sum of divisors: 189,632
φ(n) — Euler's totient: 94,812
Sum of prime factors: 47,410

Primality

Prime factorization: 3 × 47407

Nearest primes: 142,217 (−4) · 142,223 (+2)

Divisors & multiples

All divisors (4)

1 · 3 · 47407 · 142221

Aliquot sum (sum of proper divisors): 47,411

Factor pairs (a × b = 142,221)

1 × 142221

3 × 47407

First multiples

142,221 · 284,442 (double) · 426,663 · 568,884 · 711,105 · 853,326 · 995,547 · 1,137,768 · 1,279,989 · 1,422,210

Sums & aliquot sequence

As consecutive integers: 71,110 + 71,111 47,406 + 47,407 + 47,408 23,701 + 23,702 + 23,703 + 23,704 + 23,705 + 23,706

Aliquot sequence: 142,221 → 47,411 → 11,053 → 1,587 → 625 → 156 → 236 → 184 → 176 → 196 → 203 → 37 → 1 → 0 — terminates at zero

Continued fraction of √n

√142,221 = [377; (8, 5, 13, 26, 1, 6, 4, 1, 1, 5, 1, 1, 2, 1, 2, 3, 2, 12, 7, 2, 1, 1, 2, 1, …)]

Representations

In words: one hundred forty-two thousand two hundred twenty-one
Ordinal: 142221st
Binary: 100010101110001101
Octal: 425615
Hexadecimal: 0x22B8D
Base64: AiuN
One's complement: 4,294,825,074 (32-bit)
Scientific notation: 1.42221 × 10⁵
As a duration: 142,221 s = 1 day, 15 hours, 30 minutes, 21 seconds

In other bases

ternary (3) 21020002110

quaternary (4) 202232031

quinary (5) 14022341

senary (6) 3014233

septenary (7) 1131432

nonary (9) 236073

undecimal (11) 97942

duodecimal (12) 6a379

tridecimal (13) 4c971

tetradecimal (14) 39b89

pentadecimal (15) 2c216

As an angle

142,221° = 395 × 360° + 21°

21° ≈ 0.367 rad

Compass bearing: NNE (north-northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ρμβσκαʹ
Mayan (base 20): 𝋱·𝋯·𝋫·𝋡
Chinese: 一十四萬二千二百二十一
Chinese (financial): 壹拾肆萬貳仟貳佰貳拾壹

In other modern scripts

Eastern Arabic ١٤٢٢٢١ Devanagari १४२२२१ Bengali ১৪২২২১ Tamil ௧௪௨௨௨௧ Thai ๑๔๒๒๒๑ Tibetan ༡༤༢༢༢༡ Khmer ១៤២២២១ Lao ໑໔໒໒໒໑ Burmese ၁၄၂၂၂၁

Also seen as

Unicode codepoint

𢮍

CJK Unified Ideograph-22B8D

U+22B8D

Other letter (Lo)

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

Lookup U+22B8D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#022B8D

RGB(2, 43, 141)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.141.

Address: 0.2.43.141
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.43.141

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 142,221 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 US142,221 on Google Patents ↗ Look up on USPTO ↗