Live analysis

142,940

142,940 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.).

142,940 (one hundred forty-two thousand nine hundred forty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 7 × 1,021. Its proper divisors sum to 200,452, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22E5C.

Abundant Number Arithmetic Number Cube-Free Gapful Number Harshad / Niven Odious Number Recamán's Sequence Semiperfect Number Smith Number

Interestingness

★ ★ ★ ★ ☆

7 notable facts · grade B

142,928 142,929 142,930 142,931 142,932 142,933 142,934 142,935 142,936 142,937 142,938 142,939 142,940 142,941 142,942 142,943 142,944 142,945 142,946 142,947 142,948 142,949 142,950 142,951 142,952

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 20
Digit product: 0
Digital root: 2
Palindrome: No
Bit width: 18 bits
Reversed: 49,241
Recamán's sequence: a(222,536) = 142,940
Square (n²): 20,431,843,600
Cube (n³): 2,920,527,724,184,000
Divisor count: 24
σ(n) — sum of divisors: 343,392
φ(n) — Euler's totient: 48,960
Sum of prime factors: 1,037

Primality

Prime factorization: 2 ² × 5 × 7 × 1021

Nearest primes: 142,939 (−1) · 142,949 (+9)

Divisors & multiples

All divisors (24)

1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 28 · 35 · 70 · 140 · 1021 · 2042 · 4084 · 5105 · 7147 · 10210 · 14294 · 20420 · 28588 · 35735 · 71470 (half) · 142940

Aliquot sum (sum of proper divisors): 200,452

Factor pairs (a × b = 142,940)

1 × 142940

2 × 71470

4 × 35735

5 × 28588

7 × 20420

10 × 14294

14 × 10210

20 × 7147

28 × 5105

35 × 4084

70 × 2042

140 × 1021

First multiples

142,940 · 285,880 (double) · 428,820 · 571,760 · 714,700 · 857,640 · 1,000,580 · 1,143,520 · 1,286,460 · 1,429,400

Sums & aliquot sequence

As consecutive integers: 28,586 + 28,587 + 28,588 + 28,589 + 28,590 20,417 + 20,418 + … + 20,423 17,864 + 17,865 + … + 17,871 4,067 + 4,068 + … + 4,101

Aliquot sequence: 142,940 → 200,452 → 200,508 → 412,356 → 687,484 → 721,924 → 890,876 → 890,932 → 931,532 → 1,165,108 → 1,165,164 → 2,522,772 → 5,218,668 → 11,903,892 → 25,427,052 → 53,825,940 → 132,775,020 — unresolved within range

Continued fraction of √n

√142,940 = [378; (13, 1, 1, 188, 1, 1, 13, 756)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words: one hundred forty-two thousand nine hundred forty
Ordinal: 142940th
Binary: 100010111001011100
Octal: 427134
Hexadecimal: 0x22E5C
Base64: Ai5c
One's complement: 4,294,824,355 (32-bit)
Scientific notation: 1.4294 × 10⁵
As a duration: 142,940 s = 1 day, 15 hours, 42 minutes, 20 seconds

In other bases

ternary (3) 21021002002

quaternary (4) 202321130

quinary (5) 14033230

senary (6) 3021432

septenary (7) 1133510

nonary (9) 237062

undecimal (11) 98436

duodecimal (12) 6a878

tridecimal (13) 500a5

tetradecimal (14) 3a140

pentadecimal (15) 2c545

As an angle

142,940° = 397 × 360° + 20°

20° ≈ 0.349 rad

Compass bearing: NNE (north-northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic: 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian): ͵ρμβϡμʹ
Mayan (base 20): 𝋱·𝋱·𝋧·𝋠
Chinese: 一十四萬二千九百四十
Chinese (financial): 壹拾肆萬貳仟玖佰肆拾

In other modern scripts

Eastern Arabic ١٤٢٩٤٠ Devanagari १४२९४० Bengali ১৪২৯৪০ Tamil ௧௪௨௯௪௦ Thai ๑๔๒๙๔๐ Tibetan ༡༤༢༩༤༠ Khmer ១៤២៩៤០ Lao ໑໔໒໙໔໐ Burmese ၁၄၂၉၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142940, here are decompositions:

37 + 142903 = 142940
43 + 142897 = 142940
67 + 142873 = 142940
73 + 142867 = 142940
103 + 142837 = 142940
151 + 142789 = 142940
181 + 142759 = 142940
229 + 142711 = 142940

Showing the first eight; more decompositions exist.

Unicode codepoint

𢹜

CJK Unified Ideograph-22E5C

U+22E5C

Other letter (Lo)

UTF-8 encoding: F0 A2 B9 9C (4 bytes).

Lookup U+22E5C on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#022E5C

RGB(2, 46, 92)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.92.

Address: 0.2.46.92
Class: reserved
IPv4-mapped IPv6: ::ffff:0.2.46.92

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 142,940 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 US142,940 on Google Patents ↗ Look up on USPTO ↗