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142,752

142,752 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.).

142,752 (one hundred forty-two thousand seven hundred fifty-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 3 × 1,487. Its proper divisors sum to 232,224, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22DA0.

Abundant Number Arithmetic Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
21
Digit product
560
Digital root
3
Palindrome
No
Bit width
18 bits
Reversed
257,241
Recamán's sequence
a(222,912) = 142,752
Square (n²)
20,378,133,504
Cube (n³)
2,909,019,313,963,008
Divisor count
24
σ(n) — sum of divisors
374,976
φ(n) — Euler's totient
47,552
Sum of prime factors
1,500

Primality

Prime factorization: 2 5 × 3 × 1487

Nearest primes: 142,733 (−19) · 142,757 (+5)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 16 · 24 · 32 · 48 · 96 · 1487 · 2974 · 4461 · 5948 · 8922 · 11896 · 17844 · 23792 · 35688 · 47584 · 71376 (half) · 142752
Aliquot sum (sum of proper divisors): 232,224
Factor pairs (a × b = 142,752)
1 × 142752
2 × 71376
3 × 47584
4 × 35688
6 × 23792
8 × 17844
12 × 11896
16 × 8922
24 × 5948
32 × 4461
48 × 2974
96 × 1487
First multiples
142,752 · 285,504 (double) · 428,256 · 571,008 · 713,760 · 856,512 · 999,264 · 1,142,016 · 1,284,768 · 1,427,520

Sums & aliquot sequence

As consecutive integers: 47,583 + 47,584 + 47,585 2,199 + 2,200 + … + 2,262 648 + 649 + … + 839
Aliquot sequence: 142,752 232,224 402,816 668,184 1,154,856 1,732,344 3,019,656 4,692,984 7,039,536 14,927,808 31,889,472 54,564,000 124,226,976 201,869,088 334,013,952 555,824,184 833,736,336 — unresolved within range

Continued fraction of √n

√142,752 = [377; (1, 4, 1, 2, 1, 1, 1, 5, 1, 1, 1, 1, 3, 2, 1, 6, 19, 4, 2, 2, 1, 1, 2, 3, …)]

Period length 52 — the block in parentheses repeats forever.

Representations

In words
one hundred forty-two thousand seven hundred fifty-two
Ordinal
142752nd
Binary
100010110110100000
Octal
426640
Hexadecimal
0x22DA0
Base64
Ai2g
One's complement
4,294,824,543 (32-bit)
Scientific notation
1.42752 × 10⁵
As a duration
142,752 s = 1 day, 15 hours, 39 minutes, 12 seconds
In other bases
ternary (3) 21020211010
quaternary (4) 202312200
quinary (5) 14032002
senary (6) 3020520
septenary (7) 1133121
nonary (9) 236733
undecimal (11) 98285
duodecimal (12) 6a740
tridecimal (13) 4cc8c
tetradecimal (14) 3a048
pentadecimal (15) 2c46c

As an angle

142,752° = 396 × 360° + 192°
192° ≈ 3.351 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ρμβψνβʹ
Mayan (base 20)
𝋱·𝋰·𝋱·𝋬
Chinese
一十四萬二千七百五十二
Chinese (financial)
壹拾肆萬貳仟柒佰伍拾貳
In other modern scripts
Eastern Arabic ١٤٢٧٥٢ Devanagari १४२७५२ Bengali ১৪২৭৫২ Tamil ௧௪௨௭௫௨ Thai ๑๔๒๗๕๒ Tibetan ༡༤༢༧༥༢ Khmer ១៤២៧៥២ Lao ໑໔໒໗໕໒ Burmese ၁၄၂၇၅၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142752, here are decompositions:

  • 19 + 142733 = 142752
  • 41 + 142711 = 142752
  • 53 + 142699 = 142752
  • 79 + 142673 = 142752
  • 151 + 142601 = 142752
  • 163 + 142589 = 142752
  • 179 + 142573 = 142752
  • 193 + 142559 = 142752

Showing the first eight; more decompositions exist.

Unicode codepoint
𢶠
CJK Unified Ideograph-22Da0
U+22DA0
Other letter (Lo)

UTF-8 encoding: F0 A2 B6 A0 (4 bytes).

Hex color
#022DA0
RGB(2, 45, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.160.

Address
0.2.45.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.45.160

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 142,752 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 142752 first appears in π at position 70,772 of the decimal expansion (the 70,772ordinal-suffix:nd 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°.