189,472
189,472 is a composite number, even.
189,472 (one hundred eighty-nine thousand four hundred seventy-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 31 × 191. Its proper divisors sum to 197,600, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2E420.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 31
- Digit product
- 4,032
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 274,981
- Recamán's sequence
- a(168,688) = 189,472
- Square (n²)
- 35,899,638,784
- Cube (n³)
- 6,801,976,359,682,048
- Divisor count
- 24
- σ(n) — sum of divisors
- 387,072
- φ(n) — Euler's totient
- 91,200
- Sum of prime factors
- 232
Primality
Prime factorization: 2 5 × 31 × 191
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√189,472 = [435; (3, 1, 1, 10, 5, 1, 2, 26, 1, 5, 1, 3, 1, 1, 1, 8, 3, 217, 3, 8, 1, 1, 1, 3, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- one hundred eighty-nine thousand four hundred seventy-two
- Ordinal
- 189472nd
- Binary
- 101110010000100000
- Octal
- 562040
- Hexadecimal
- 0x2E420
- Base64
- AuQg
- One's complement
- 4,294,777,823 (32-bit)
- Scientific notation
- 1.89472 × 10⁵
- As a duration
- 189,472 s = 2 days, 4 hours, 37 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρπθυοβʹ
- Chinese
- 十八萬九千四百七十二
- Chinese (financial)
- 壹拾捌萬玖仟肆佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 189472, here are decompositions:
- 5 + 189467 = 189472
- 71 + 189401 = 189472
- 83 + 189389 = 189472
- 233 + 189239 = 189472
- 431 + 189041 = 189472
- 461 + 189011 = 189472
- 641 + 188831 = 189472
- 719 + 188753 = 189472
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 AE 90 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.228.32.
- Address
- 0.2.228.32
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.228.32
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 189,472 and was likely granted around 1875.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 189472 first appears in π at position 301,778 of the decimal expansion (the 301,778ordinal-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°.