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137,724

137,724 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.).

137,724 (one hundred thirty-seven thousand seven hundred twenty-four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 23 × 499. Its proper divisors sum to 198,276, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x219FC.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
1,176
Digital root
6
Palindrome
No
Bit width
18 bits
Reversed
427,731
Recamán's sequence
a(493,379) = 137,724
Square (n²)
18,967,900,176
Cube (n³)
2,612,335,083,839,424
Divisor count
24
σ(n) — sum of divisors
336,000
φ(n) — Euler's totient
43,824
Sum of prime factors
529

Primality

Prime factorization: 2 2 × 3 × 23 × 499

Nearest primes: 137,723 (−1) · 137,737 (+13)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 23 · 46 · 69 · 92 · 138 · 276 · 499 · 998 · 1497 · 1996 · 2994 · 5988 · 11477 · 22954 · 34431 · 45908 · 68862 (half) · 137724
Aliquot sum (sum of proper divisors): 198,276
Factor pairs (a × b = 137,724)
1 × 137724
2 × 68862
3 × 45908
4 × 34431
6 × 22954
12 × 11477
23 × 5988
46 × 2994
69 × 1996
92 × 1497
138 × 998
276 × 499
First multiples
137,724 · 275,448 (double) · 413,172 · 550,896 · 688,620 · 826,344 · 964,068 · 1,101,792 · 1,239,516 · 1,377,240

Sums & aliquot sequence

As consecutive integers: 45,907 + 45,908 + 45,909 17,212 + 17,213 + … + 17,219 5,977 + 5,978 + … + 5,999 5,727 + 5,728 + … + 5,750
Aliquot sequence: 137,724 198,276 328,572 502,076 405,124 303,850 276,470 221,194 110,600 187,000 318,440 437,560 547,040 850,048 909,452 682,096 657,104 — unresolved within range

Continued fraction of √n

√137,724 = [371; (8, 1, 15, 1, 48, 1, 1, 5, 1, 1, 1, 2, 3, 1, 1, 29, 8, 29, 1, 1, 3, 2, 1, 1, …)]

Period length 34 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-seven thousand seven hundred twenty-four
Ordinal
137724th
Binary
100001100111111100
Octal
414774
Hexadecimal
0x219FC
Base64
Ahn8
One's complement
4,294,829,571 (32-bit)
Scientific notation
1.37724 × 10⁵
As a duration
137,724 s = 1 day, 14 hours, 15 minutes, 24 seconds
In other bases
ternary (3) 20222220220
quaternary (4) 201213330
quinary (5) 13401344
senary (6) 2541340
septenary (7) 1112346
nonary (9) 228826
undecimal (11) 94524
duodecimal (12) 67850
tridecimal (13) 4a8c2
tetradecimal (14) 38296
pentadecimal (15) 2ac19

As an angle

137,724° = 382 × 360° + 204°
204° ≈ 3.56 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλζψκδʹ
Mayan (base 20)
𝋱·𝋤·𝋦·𝋤
Chinese
一十三萬七千七百二十四
Chinese (financial)
壹拾參萬柒仟柒佰貳拾肆
In other modern scripts
Eastern Arabic ١٣٧٧٢٤ Devanagari १३७७२४ Bengali ১৩৭৭২৪ Tamil ௧௩௭௭௨௪ Thai ๑๓๗๗๒๔ Tibetan ༡༣༧༧༢༤ Khmer ១៣៧៧២៤ Lao ໑໓໗໗໒໔ Burmese ၁၃၇၇၂၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 137724, here are decompositions:

  • 11 + 137713 = 137724
  • 17 + 137707 = 137724
  • 71 + 137653 = 137724
  • 101 + 137623 = 137724
  • 127 + 137597 = 137724
  • 131 + 137593 = 137724
  • 137 + 137587 = 137724
  • 151 + 137573 = 137724

Showing the first eight; more decompositions exist.

Unicode codepoint
𡧼
CJK Unified Ideograph-219Fc
U+219FC
Other letter (Lo)

UTF-8 encoding: F0 A1 A7 BC (4 bytes).

Hex color
#0219FC
RGB(2, 25, 252)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.25.252.

Address
0.2.25.252
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.25.252

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 137,724 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 137724 first appears in π at position 171,419 of the decimal expansion (the 171,419ordinal-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°.