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988,420

988,420 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.).

988,420 (nine hundred eighty-eight thousand four hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 73 × 677. Its proper divisors sum to 1,118,804, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1504.

Abundant Number Arithmetic Number Cube-Free Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
31
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
24,889
Square (n²)
976,974,096,400
Cube (n³)
965,660,736,363,688,000
Divisor count
24
σ(n) — sum of divisors
2,107,224
φ(n) — Euler's totient
389,376
Sum of prime factors
759

Primality

Prime factorization: 2 2 × 5 × 73 × 677

Nearest primes: 988,417 (−3) · 988,439 (+19)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 73 · 146 · 292 · 365 · 677 · 730 · 1354 · 1460 · 2708 · 3385 · 6770 · 13540 · 49421 · 98842 · 197684 · 247105 · 494210 (half) · 988420
Aliquot sum (sum of proper divisors): 1,118,804
Factor pairs (a × b = 988,420)
1 × 988420
2 × 494210
4 × 247105
5 × 197684
10 × 98842
20 × 49421
73 × 13540
146 × 6770
292 × 3385
365 × 2708
677 × 1460
730 × 1354
First multiples
988,420 · 1,976,840 (double) · 2,965,260 · 3,953,680 · 4,942,100 · 5,930,520 · 6,918,940 · 7,907,360 · 8,895,780 · 9,884,200

Sums & aliquot sequence

As a sum of two squares: 66² + 992² = 142² + 984² = 648² + 754² = 702² + 704²
As consecutive integers: 197,682 + 197,683 + 197,684 + 197,685 + 197,686 123,549 + 123,550 + … + 123,556 24,691 + 24,692 + … + 24,730 13,504 + 13,505 + … + 13,576
Aliquot sequence: 988,420 1,118,804 954,400 1,377,482 688,744 823,256 977,224 992,696 868,624 821,589 282,411 125,529 41,847 21,993 7,335 5,457 2,319 — unresolved within range

Continued fraction of √n

√988,420 = [994; (5, 5, 1, 1, 1, 2, 2, 4, 1, 30, 3, 1, 19, 1, 24, 4, 1, 1, 2, 7, 2, 1, 1, 1, …)]

Representations

In words
nine hundred eighty-eight thousand four hundred twenty
Ordinal
988420th
Binary
11110001010100000100
Octal
3612404
Hexadecimal
0xF1504
Base64
DxUE
One's complement
4,293,978,875 (32-bit)
Scientific notation
9.8842 × 10⁵
As a duration
988,420 s = 11 days, 10 hours, 33 minutes, 40 seconds
In other bases
ternary (3) 1212012212011
quaternary (4) 3301110010
quinary (5) 223112140
senary (6) 33104004
septenary (7) 11254456
nonary (9) 1765764
undecimal (11) 615684
duodecimal (12) 3b8004
tridecimal (13) 287b84
tetradecimal (14) 1ba2d6
pentadecimal (15) 147cea

As an angle

988,420° = 2,745 × 360° + 220°
220° ≈ 3.84 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ϡπηυκʹ
Chinese
九十八萬八千四百二十
Chinese (financial)
玖拾捌萬捌仟肆佰貳拾
In other modern scripts
Eastern Arabic ٩٨٨٤٢٠ Devanagari ९८८४२० Bengali ৯৮৮৪২০ Tamil ௯௮௮௪௨௦ Thai ๙๘๘๔๒๐ Tibetan ༩༨༨༤༢༠ Khmer ៩៨៨៤២០ Lao ໙໘໘໔໒໐ Burmese ၉၈၈၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988420, here are decompositions:

  • 3 + 988417 = 988420
  • 11 + 988409 = 988420
  • 53 + 988367 = 988420
  • 101 + 988319 = 988420
  • 107 + 988313 = 988420
  • 149 + 988271 = 988420
  • 263 + 988157 = 988420
  • 311 + 988109 = 988420

Showing the first eight; more decompositions exist.

Hex color
#0F1504
RGB(15, 21, 4)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.21.4.

Address
0.15.21.4
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.21.4

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 988,420 and was likely granted around 1911.

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

Position in π

The digit sequence 988420 first appears in π at position 978,749 of the decimal expansion (the 978,749ordinal-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°.