989,172
989,172 is a composite number, even.
989,172 (nine hundred eighty-nine thousand one hundred seventy-two) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2² × 3⁴ × 43 × 71. Its proper divisors sum to 1,694,124, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF17F4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 9,072
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 271,989
- Square (n²)
- 978,461,245,584
- Cube (n³)
- 967,866,467,216,816,448
- Divisor count
- 60
- σ(n) — sum of divisors
- 2,683,296
- φ(n) — Euler's totient
- 317,520
- Sum of prime factors
- 130
Primality
Prime factorization: 2 2 × 3 4 × 43 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√989,172 = [994; (1, 1, 3, 124, 28, 124, 3, 1, 1, 1988)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-nine thousand one hundred seventy-two
- Ordinal
- 989172nd
- Binary
- 11110001011111110100
- Octal
- 3613764
- Hexadecimal
- 0xF17F4
- Base64
- Dxf0
- One's complement
- 4,293,978,123 (32-bit)
- Scientific notation
- 9.89172 × 10⁵
- As a duration
- 989,172 s = 11 days, 10 hours, 46 minutes, 12 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ϡπθροβʹ
- Chinese
- 九十八萬九千一百七十二
- Chinese (financial)
- 玖拾捌萬玖仟壹佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 989172, here are decompositions:
- 53 + 989119 = 989172
- 73 + 989099 = 989172
- 101 + 989071 = 989172
- 113 + 989059 = 989172
- 193 + 988979 = 989172
- 263 + 988909 = 989172
- 271 + 988901 = 989172
- 311 + 988861 = 989172
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.23.244.
- Address
- 0.15.23.244
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.23.244
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 989,172 and was likely granted around 1911.
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°.