989,400
989,400 is a composite number, even.
989,400 (nine hundred eighty-nine thousand four hundred) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2³ × 3 × 5² × 17 × 97. Its proper divisors sum to 2,291,640, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF18D8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 4,989
- Square (n²)
- 978,912,360,000
- Cube (n³)
- 968,535,888,984,000,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 3,281,040
- φ(n) — Euler's totient
- 245,760
- Sum of prime factors
- 133
Primality
Prime factorization: 2 3 × 3 × 5 2 × 17 × 97
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√989,400 = [994; (1, 2, 5, 2, 4, 2, 7, 11, 1, 1, 1, 3, 9, 1, 2, 16, 10, 2, 1, 4, 1, 1, 1, 1, …)]
Period length 60 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred eighty-nine thousand four hundred
- Ordinal
- 989400th
- Binary
- 11110001100011011000
- Octal
- 3614330
- Hexadecimal
- 0xF18D8
- Base64
- DxjY
- One's complement
- 4,293,977,895 (32-bit)
- Scientific notation
- 9.894 × 10⁵
- As a duration
- 989,400 s = 11 days, 10 hours, 50 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ϡπθυʹ
- Chinese
- 九十八萬九千四百
- Chinese (financial)
- 玖拾捌萬玖仟肆佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 989400, here are decompositions:
- 19 + 989381 = 989400
- 23 + 989377 = 989400
- 47 + 989353 = 989400
- 53 + 989347 = 989400
- 59 + 989341 = 989400
- 73 + 989327 = 989400
- 79 + 989321 = 989400
- 107 + 989293 = 989400
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.24.216.
- Address
- 0.15.24.216
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.24.216
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 989,400 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 989400 first appears in π at position 67,312 of the decimal expansion (the 67,312ordinal-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°.