Live analysis

520,720

520,720 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.).

520,720 (five hundred twenty thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 5 × 23 × 283. Its proper divisors sum to 747,056, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7F210.

Abundant Number Happy Number Harshad / Niven Odious Number Practical Number Refactorable Number Semiperfect Number

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

520,708 520,709 520,710 520,711 520,712 520,713 520,714 520,715 520,716 520,717 520,718 520,719 520,720 520,721 520,722 520,723 520,724 520,725 520,726 520,727 520,728 520,729 520,730 520,731 520,732

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 16
Digit product: 0
Digital root: 7
Palindrome: No
Bit width: 19 bits
Reversed: 27,025
Square (n²): 271,149,318,400
Cube (n³): 141,192,873,077,248,000
Divisor count: 40
σ(n) — sum of divisors: 1,267,776
φ(n) — Euler's totient: 198,528
Sum of prime factors: 319

Primality

Prime factorization: 2 ⁴ × 5 × 23 × 283

Nearest primes: 520,717 (−3) · 520,721 (+1)

Divisors & multiples

All divisors (40)

1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 23 · 40 · 46 · 80 · 92 · 115 · 184 · 230 · 283 · 368 · 460 · 566 · 920 · 1132 · 1415 · 1840 · 2264 · 2830 · 4528 · 5660 · 6509 · 11320 · 13018 · 22640 · 26036 · 32545 · 52072 · 65090 · 104144 · 130180 · 260360 (half) · 520720

Aliquot sum (sum of proper divisors): 747,056

Factor pairs (a × b = 520,720)

1 × 520720

2 × 260360

4 × 130180

5 × 104144

8 × 65090

10 × 52072

16 × 32545

20 × 26036

23 × 22640

40 × 13018

46 × 11320

80 × 6509

92 × 5660

115 × 4528

184 × 2830

230 × 2264

283 × 1840

368 × 1415

460 × 1132

566 × 920

First multiples

520,720 · 1,041,440 (double) · 1,562,160 · 2,082,880 · 2,603,600 · 3,124,320 · 3,645,040 · 4,165,760 · 4,686,480 · 5,207,200

Sums & aliquot sequence

As consecutive integers: 104,142 + 104,143 + 104,144 + 104,145 + 104,146 22,629 + 22,630 + … + 22,651 16,257 + 16,258 + … + 16,288 4,471 + 4,472 + … + 4,585

Aliquot sequence: 520,720 → 747,056 → 700,396 → 584,776 → 529,064 → 487,756 → 380,244 → 507,020 → 572,548 → 429,418 → 283,382 → 184,246 → 108,434 → 54,220 → 59,684 → 47,500 → 61,840 — unresolved within range

Continued fraction of √n

√520,720 = [721; (1, 1, 1, 1, 3, 1, 2, 3, 1, 1, 4, 3, 18, 1, 2, 8, 1, 1, 1, 1, 1, 159, 1, 2, …)]

Representations

In words: five hundred twenty thousand seven hundred twenty
Ordinal: 520720th
Binary: 1111111001000010000
Octal: 1771020
Hexadecimal: 0x7F210
Base64: B/IQ
One's complement: 4,294,446,575 (32-bit)
Scientific notation: 5.2072 × 10⁵
As a duration: 520,720 s = 6 days, 38 minutes, 40 seconds

In other bases

ternary (3) 222110021221

quaternary (4) 1333020100

quinary (5) 113130340

senary (6) 15054424

septenary (7) 4266064

nonary (9) 873257

undecimal (11) 326252

duodecimal (12) 211414

tridecimal (13) 153025

tetradecimal (14) d7aa4

pentadecimal (15) a444a

Palindromic in base 15

As an angle

520,720° = 1,446 × 360° + 160°

160° ≈ 2.793 rad

Compass bearing: SSE (south-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic: 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian): ͵φκψκʹ
Chinese: 五十二萬零七百二十
Chinese (financial): 伍拾貳萬零柒佰貳拾

In other modern scripts

Eastern Arabic ٥٢٠٧٢٠ Devanagari ५२०७२० Bengali ৫২০৭২০ Tamil ௫௨௦௭௨௦ Thai ๕๒๐๗๒๐ Tibetan ༥༢༠༧༢༠ Khmer ៥២០៧២០ Lao ໕໒໐໗໒໐ Burmese ၅၂၀၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 520720, here are decompositions:

3 + 520717 = 520720
17 + 520703 = 520720
29 + 520691 = 520720
41 + 520679 = 520720
71 + 520649 = 520720
89 + 520631 = 520720
113 + 520607 = 520720
131 + 520589 = 520720

Showing the first eight; more decompositions exist.

Hex color

#07F210

RGB(7, 242, 16)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.242.16.

Address: 0.7.242.16
Class: reserved
IPv4-mapped IPv6: ::ffff:0.7.242.16

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 520,720 and was likely granted around 1894.

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

Look up US520,720 on Google Patents ↗ Look up on USPTO ↗

Position in π

The digit sequence 520720 first appears in π at position 985,261 of the decimal expansion (the 985,261ordinal-suffix:st 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.

Look up 520720 on Pi Search ↗