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142,656

142,656 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.).

142,656 (one hundred forty-two thousand six hundred fifty-six) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 3 × 743. Its proper divisors sum to 235,296, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22D40.

Abundant Number Evil Number Gapful Number Harshad / Niven Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
1,440
Digital root
6
Palindrome
No
Bit width
18 bits
Reversed
656,241
Recamán's sequence
a(223,104) = 142,656
Square (n²)
20,350,734,336
Cube (n³)
2,903,154,357,436,416
Divisor count
28
σ(n) — sum of divisors
377,952
φ(n) — Euler's totient
47,488
Sum of prime factors
758

Primality

Prime factorization: 2 6 × 3 × 743

Nearest primes: 142,619 (−37) · 142,657 (+1)

Divisors & multiples

All divisors (28)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 16 · 24 · 32 · 48 · 64 · 96 · 192 · 743 · 1486 · 2229 · 2972 · 4458 · 5944 · 8916 · 11888 · 17832 · 23776 · 35664 · 47552 · 71328 (half) · 142656
Aliquot sum (sum of proper divisors): 235,296
Factor pairs (a × b = 142,656)
1 × 142656
2 × 71328
3 × 47552
4 × 35664
6 × 23776
8 × 17832
12 × 11888
16 × 8916
24 × 5944
32 × 4458
48 × 2972
64 × 2229
96 × 1486
192 × 743
First multiples
142,656 · 285,312 (double) · 427,968 · 570,624 · 713,280 · 855,936 · 998,592 · 1,141,248 · 1,283,904 · 1,426,560

Sums & aliquot sequence

As consecutive integers: 47,551 + 47,552 + 47,553 1,051 + 1,052 + … + 1,178 180 + 181 + … + 563
Aliquot sequence: 142,656 235,296 485,424 873,492 1,191,564 2,437,236 3,881,804 2,938,324 2,257,440 4,855,008 8,039,328 16,055,904 26,091,096 39,136,704 65,470,656 119,603,904 248,542,680 — unresolved within range

Continued fraction of √n

√142,656 = [377; (1, 2, 3, 5, 1, 1, 3, 1, 49, 1, 1, 2, 1, 1, 1, 2, 3, 7, 2, 29, 1, 2, 1, 29, …)]

Period length 44 — the block in parentheses repeats forever.

Representations

In words
one hundred forty-two thousand six hundred fifty-six
Ordinal
142656th
Binary
100010110101000000
Octal
426500
Hexadecimal
0x22D40
Base64
Ai1A
One's complement
4,294,824,639 (32-bit)
Scientific notation
1.42656 × 10⁵
As a duration
142,656 s = 1 day, 15 hours, 37 minutes, 36 seconds
In other bases
ternary (3) 21020200120
quaternary (4) 202311000
quinary (5) 14031111
senary (6) 3020240
septenary (7) 1132623
nonary (9) 236616
undecimal (11) 981a8
duodecimal (12) 6a680
tridecimal (13) 4cc17
tetradecimal (14) 39dba
pentadecimal (15) 2c406

As an angle

142,656° = 396 × 360° + 96°
96° ≈ 1.676 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμβχνϛʹ
Mayan (base 20)
𝋱·𝋰·𝋬·𝋰
Chinese
一十四萬二千六百五十六
Chinese (financial)
壹拾肆萬貳仟陸佰伍拾陸
In other modern scripts
Eastern Arabic ١٤٢٦٥٦ Devanagari १४२६५६ Bengali ১৪২৬৫৬ Tamil ௧௪௨௬௫௬ Thai ๑๔๒๖๕๖ Tibetan ༡༤༢༦༥༦ Khmer ១៤២៦៥៦ Lao ໑໔໒໖໕໖ Burmese ၁၄၂၆၅၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142656, here are decompositions:

  • 37 + 142619 = 142656
  • 47 + 142609 = 142656
  • 67 + 142589 = 142656
  • 83 + 142573 = 142656
  • 89 + 142567 = 142656
  • 97 + 142559 = 142656
  • 103 + 142553 = 142656
  • 109 + 142547 = 142656

Showing the first eight; more decompositions exist.

Unicode codepoint
𢵀
CJK Unified Ideograph-22D40
U+22D40
Other letter (Lo)

UTF-8 encoding: F0 A2 B5 80 (4 bytes).

Hex color
#022D40
RGB(2, 45, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.64.

Address
0.2.45.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.45.64

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 142,656 and was likely granted around 1872.

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

Related reading

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