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160,720

160,720 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.).

160,720 (one hundred sixty thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁴ × 5 × 7² × 41. Its proper divisors sum to 284,564, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x273D0.

Abundant Number Gapful Number Harshad / Niven Odious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
18 bits
Reversed
27,061
Recamán's sequence
a(200,716) = 160,720
Square (n²)
25,830,918,400
Cube (n³)
4,151,545,205,248,000
Divisor count
60
σ(n) — sum of divisors
445,284
φ(n) — Euler's totient
53,760
Sum of prime factors
68

Primality

Prime factorization: 2 4 × 5 × 7 2 × 41

Nearest primes: 160,711 (−9) · 160,723 (+3)

Divisors & multiples

All divisors (60)
1 · 2 · 4 · 5 · 7 · 8 · 10 · 14 · 16 · 20 · 28 · 35 · 40 · 41 · 49 · 56 · 70 · 80 · 82 · 98 · 112 · 140 · 164 · 196 · 205 · 245 · 280 · 287 · 328 · 392 · 410 · 490 · 560 · 574 · 656 · 784 · 820 · 980 · 1148 · 1435 · 1640 · 1960 · 2009 · 2296 · 2870 · 3280 · 3920 · 4018 · 4592 · 5740 · 8036 · 10045 · 11480 · 16072 · 20090 · 22960 · 32144 · 40180 · 80360 (half) · 160720
Aliquot sum (sum of proper divisors): 284,564
Factor pairs (a × b = 160,720)
1 × 160720
2 × 80360
4 × 40180
5 × 32144
7 × 22960
8 × 20090
10 × 16072
14 × 11480
16 × 10045
20 × 8036
28 × 5740
35 × 4592
40 × 4018
41 × 3920
49 × 3280
56 × 2870
70 × 2296
80 × 2009
82 × 1960
98 × 1640
112 × 1435
140 × 1148
164 × 980
196 × 820
205 × 784
245 × 656
280 × 574
287 × 560
328 × 490
392 × 410
First multiples
160,720 · 321,440 (double) · 482,160 · 642,880 · 803,600 · 964,320 · 1,125,040 · 1,285,760 · 1,446,480 · 1,607,200

Sums & aliquot sequence

As a sum of two squares: 84² + 392² = 168² + 364²
As consecutive integers: 32,142 + 32,143 + 32,144 + 32,145 + 32,146 22,957 + 22,958 + … + 22,963 5,007 + 5,008 + … + 5,038 4,575 + 4,576 + … + 4,609
Aliquot sequence: 160,720 284,564 284,620 441,140 671,692 764,708 815,836 815,892 1,560,300 3,606,036 6,010,284 10,017,364 10,375,526 7,472,794 5,566,640 7,490,560 16,090,880 — unresolved within range

Continued fraction of √n

√160,720 = [400; (1, 8, 1, 8, 1, 800)]

Period length 6 — the block in parentheses repeats forever.

Representations

In words
one hundred sixty thousand seven hundred twenty
Ordinal
160720th
Binary
100111001111010000
Octal
471720
Hexadecimal
0x273D0
Base64
AnPQ
One's complement
4,294,806,575 (32-bit)
Scientific notation
1.6072 × 10⁵
As a duration
160,720 s = 1 day, 20 hours, 38 minutes, 40 seconds
In other bases
ternary (3) 22011110121
quaternary (4) 213033100
quinary (5) 20120340
senary (6) 3240024
septenary (7) 1236400
nonary (9) 264417
undecimal (11) aa82a
duodecimal (12) 79014
tridecimal (13) 58201
tetradecimal (14) 42800
pentadecimal (15) 3294a

As an angle

160,720° = 446 × 360° + 160°
160° ≈ 2.793 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ρξψκʹ
Chinese
一十六萬零七百二十
Chinese (financial)
壹拾陸萬零柒佰貳拾
In other modern scripts
Eastern Arabic ١٦٠٧٢٠ Devanagari १६०७२० Bengali ১৬০৭২০ Tamil ௧௬௦௭௨௦ Thai ๑๖๐๗๒๐ Tibetan ༡༦༠༧༢༠ Khmer ១៦០៧២០ Lao ໑໖໐໗໒໐ Burmese ၁၆၀၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 160720, here are decompositions:

  • 11 + 160709 = 160720
  • 23 + 160697 = 160720
  • 71 + 160649 = 160720
  • 83 + 160637 = 160720
  • 101 + 160619 = 160720
  • 137 + 160583 = 160720
  • 167 + 160553 = 160720
  • 179 + 160541 = 160720

Showing the first eight; more decompositions exist.

Unicode codepoint
𧏐
CJK Unified Ideograph-273D0
U+273D0
Other letter (Lo)

UTF-8 encoding: F0 A7 8F 90 (4 bytes).

Hex color
#0273D0
RGB(2, 115, 208)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.115.208.

Address
0.2.115.208
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.115.208

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 160,720 and was likely granted around 1873.

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°.