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142,836

142,836 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.).

142,836 (one hundred forty-two thousand eight hundred thirty-six) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 3 × 11,903. Its proper divisors sum to 190,476, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22DF4.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
1,152
Digital root
6
Palindrome
No
Bit width
18 bits
Reversed
638,241
Recamán's sequence
a(222,744) = 142,836
Square (n²)
20,402,122,896
Cube (n³)
2,914,157,625,973,056
Divisor count
12
σ(n) — sum of divisors
333,312
φ(n) — Euler's totient
47,608
Sum of prime factors
11,910

Primality

Prime factorization: 2 2 × 3 × 11903

Nearest primes: 142,811 (−25) · 142,837 (+1)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 4 · 6 · 12 · 11903 · 23806 · 35709 · 47612 · 71418 (half) · 142836
Aliquot sum (sum of proper divisors): 190,476
Factor pairs (a × b = 142,836)
1 × 142836
2 × 71418
3 × 47612
4 × 35709
6 × 23806
12 × 11903
First multiples
142,836 · 285,672 (double) · 428,508 · 571,344 · 714,180 · 857,016 · 999,852 · 1,142,688 · 1,285,524 · 1,428,360

Sums & aliquot sequence

As consecutive integers: 47,611 + 47,612 + 47,613 17,851 + 17,852 + … + 17,858 5,940 + 5,941 + … + 5,963
Aliquot sequence: 142,836 190,476 390,468 591,100 752,564 592,780 668,228 607,564 462,540 934,548 1,293,804 2,023,692 3,127,860 6,360,528 10,070,960 13,344,208 12,510,226 — unresolved within range

Continued fraction of √n

√142,836 = [377; (1, 14, 1, 2, 1, 46, 2, 62, 2, 46, 1, 2, 1, 14, 1, 754)]

Period length 16 — the block in parentheses repeats forever.

Representations

In words
one hundred forty-two thousand eight hundred thirty-six
Ordinal
142836th
Binary
100010110111110100
Octal
426764
Hexadecimal
0x22DF4
Base64
Ai30
One's complement
4,294,824,459 (32-bit)
Scientific notation
1.42836 × 10⁵
As a duration
142,836 s = 1 day, 15 hours, 40 minutes, 36 seconds
In other bases
ternary (3) 21020221020
quaternary (4) 202313310
quinary (5) 14032321
senary (6) 3021140
septenary (7) 1133301
nonary (9) 236836
undecimal (11) 98351
duodecimal (12) 6a7b0
tridecimal (13) 50025
tetradecimal (14) 3a0a8
pentadecimal (15) 2c4c6

As an angle

142,836° = 396 × 360° + 276°
276° ≈ 4.817 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμβωλϛʹ
Mayan (base 20)
𝋱·𝋱·𝋡·𝋰
Chinese
一十四萬二千八百三十六
Chinese (financial)
壹拾肆萬貳仟捌佰參拾陸
In other modern scripts
Eastern Arabic ١٤٢٨٣٦ Devanagari १४२८३६ Bengali ১৪২৮৩৬ Tamil ௧௪௨௮௩௬ Thai ๑๔๒๘๓๖ Tibetan ༡༤༢༨༣༦ Khmer ១៤២៨៣៦ Lao ໑໔໒໘໓໖ Burmese ၁၄၂၈၃၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142836, here are decompositions:

  • 37 + 142799 = 142836
  • 47 + 142789 = 142836
  • 79 + 142757 = 142836
  • 103 + 142733 = 142836
  • 137 + 142699 = 142836
  • 139 + 142697 = 142836
  • 163 + 142673 = 142836
  • 179 + 142657 = 142836

Showing the first eight; more decompositions exist.

Unicode codepoint
𢷴
CJK Unified Ideograph-22Df4
U+22DF4
Other letter (Lo)

UTF-8 encoding: F0 A2 B7 B4 (4 bytes).

Hex color
#022DF4
RGB(2, 45, 244)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.244.

Address
0.2.45.244
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.45.244

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 142,836 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 142836 first appears in π at position 926,046 of the decimal expansion (the 926,046ordinal-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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.