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997,221

997,221 is a composite number, odd.

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.).

997,221 (nine hundred ninety-seven thousand two hundred twenty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 491 × 677. Written other ways, in hexadecimal, 0xF3765.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
30
Digit product
2,268
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
122,799
Square (n²)
994,449,722,841
Cube (n³)
991,686,147,061,224,861
Divisor count
8
σ(n) — sum of divisors
1,334,304
φ(n) — Euler's totient
662,480
Sum of prime factors
1,171

Primality

Prime factorization: 3 × 491 × 677

Nearest primes: 997,219 (−2) · 997,247 (+26)

Divisors & multiples

All divisors (8)
1 · 3 · 491 · 677 · 1473 · 2031 · 332407 · 997221
Aliquot sum (sum of proper divisors): 337,083
Factor pairs (a × b = 997,221)
1 × 997221
3 × 332407
491 × 2031
677 × 1473
First multiples
997,221 · 1,994,442 (double) · 2,991,663 · 3,988,884 · 4,986,105 · 5,983,326 · 6,980,547 · 7,977,768 · 8,974,989 · 9,972,210

Sums & aliquot sequence

As consecutive integers: 498,610 + 498,611 332,406 + 332,407 + 332,408 166,201 + 166,202 + 166,203 + 166,204 + 166,205 + 166,206 1,786 + 1,787 + … + 2,276
Aliquot sequence: 997,221 337,083 112,365 101,043 47,677 8,323 1,757 259 45 33 15 9 4 3 1 0 — terminates at zero

Continued fraction of √n

√997,221 = [998; (1, 1, 1, 1, 3, 1, 1, 2, 9, 6, 25, 1, 3, 2, 2, 1, 23, 14, 1, 38, 4, 2, 1, 1, …)]

Representations

In words
nine hundred ninety-seven thousand two hundred twenty-one
Ordinal
997221st
Binary
11110011011101100101
Octal
3633545
Hexadecimal
0xF3765
Base64
Dzdl
One's complement
4,293,970,074 (32-bit)
Scientific notation
9.97221 × 10⁵
As a duration
997,221 s = 11 days, 13 hours, 21 seconds
In other bases
ternary (3) 1212122221010
quaternary (4) 3303131211
quinary (5) 223402341
senary (6) 33212433
septenary (7) 11322231
nonary (9) 1778833
undecimal (11) 621255
duodecimal (12) 401119
tridecimal (13) 28bb94
tetradecimal (14) 1bd5c1
pentadecimal (15) 14a716

As an angle

997,221° = 2,770 × 360° + 21°
21° ≈ 0.367 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵ϡϟζσκαʹ
Chinese
九十九萬七千二百二十一
Chinese (financial)
玖拾玖萬柒仟貳佰貳拾壹
In other modern scripts
Eastern Arabic ٩٩٧٢٢١ Devanagari ९९७२२१ Bengali ৯৯৭২২১ Tamil ௯௯௭௨௨௧ Thai ๙๙๗๒๒๑ Tibetan ༩༩༧༢༢༡ Khmer ៩៩៧២២១ Lao ໙໙໗໒໒໑ Burmese ၉၉၇၂၂၁

Also seen as

Hex color
#0F3765
RGB(15, 55, 101)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.55.101.

Address
0.15.55.101
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.55.101

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 997,221 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 997221 first appears in π at position 473,573 of the decimal expansion (the 473,573ordinal-suffix:rd 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