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142,823

142,823 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.).

142,823 (one hundred forty-two thousand eight hundred twenty-three) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 19 × 7,517. Written other ways, in hexadecimal, 0x22DE7.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
20
Digit product
384
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
328,241
Recamán's sequence
a(222,770) = 142,823
Square (n²)
20,398,409,329
Cube (n³)
2,913,362,015,595,767
Divisor count
4
σ(n) — sum of divisors
150,360
φ(n) — Euler's totient
135,288
Sum of prime factors
7,536

Primality

Prime factorization: 19 × 7517

Nearest primes: 142,811 (−12) · 142,837 (+14)

Divisors & multiples

All divisors (4)
1 · 19 · 7517 · 142823
Aliquot sum (sum of proper divisors): 7,537
Factor pairs (a × b = 142,823)
1 × 142823
19 × 7517
First multiples
142,823 · 285,646 (double) · 428,469 · 571,292 · 714,115 · 856,938 · 999,761 · 1,142,584 · 1,285,407 · 1,428,230

Sums & aliquot sequence

As consecutive integers: 71,411 + 71,412 7,508 + 7,509 + … + 7,526 3,740 + 3,741 + … + 3,777
Aliquot sequence: 142,823 7,537 1 0 — terminates at zero

Continued fraction of √n

√142,823 = [377; (1, 11, 2, 1, 1, 4, 2, 9, 1, 9, 3, 4, 2, 1, 2, 5, 6, 1, 7, 5, 1, 1, 3, 1, …)]

Representations

In words
one hundred forty-two thousand eight hundred twenty-three
Ordinal
142823rd
Binary
100010110111100111
Octal
426747
Hexadecimal
0x22DE7
Base64
Ai3n
One's complement
4,294,824,472 (32-bit)
Scientific notation
1.42823 × 10⁵
As a duration
142,823 s = 1 day, 15 hours, 40 minutes, 23 seconds
In other bases
ternary (3) 21020220202
quaternary (4) 202313213
quinary (5) 14032243
senary (6) 3021115
septenary (7) 1133252
nonary (9) 236822
undecimal (11) 9833a
duodecimal (12) 6a79b
tridecimal (13) 50015
tetradecimal (14) 3a099
pentadecimal (15) 2c4b8

As an angle

142,823° = 396 × 360° + 263°
263° ≈ 4.59 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵ρμβωκγʹ
Mayan (base 20)
𝋱·𝋱·𝋡·𝋣
Chinese
一十四萬二千八百二十三
Chinese (financial)
壹拾肆萬貳仟捌佰貳拾參
In other modern scripts
Eastern Arabic ١٤٢٨٢٣ Devanagari १४२८२३ Bengali ১৪২৮২৩ Tamil ௧௪௨௮௨௩ Thai ๑๔๒๘๒๓ Tibetan ༡༤༢༨༢༣ Khmer ១៤២៨២៣ Lao ໑໔໒໘໒໓ Burmese ၁၄၂၈၂၃

Also seen as

Unicode codepoint
𢷧
CJK Unified Ideograph-22De7
U+22DE7
Other letter (Lo)

UTF-8 encoding: F0 A2 B7 A7 (4 bytes).

Hex color
#022DE7
RGB(2, 45, 231)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.231.

Address
0.2.45.231
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.45.231

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 142,823 and was likely granted around 1872.

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

Position in π

The digit sequence 142823 first appears in π at position 187,329 of the decimal expansion (the 187,329ordinal-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.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.