8,742,090
8,742,090 is a composite number, even.
8,742,090 (eight million seven hundred forty-two thousand ninety) is an even 7-digit number. It is a composite number with 96 divisors, and factors as 2 × 3 × 5 × 7² × 19 × 313. Its proper divisors sum to 17,031,030, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x8564CA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 30
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 24 bits
- Reversed
- 902,478
- Square (n²)
- 76,424,137,568,100
- Divisor count
- 96
- σ(n) — sum of divisors
- 25,773,120
- φ(n) — Euler's totient
- 1,886,976
- Sum of prime factors
- 356
Primality
Prime factorization: 2 × 3 × 5 × 7 2 × 19 × 313
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√8,742,090 = [2956; (1, 2, 2, 1, 3, 4, 1, 2, 6, 1, 3, 5, 1, 8, 2, 18, 1, 1, 1, 1, 17, 20, 17, 1, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- eight million seven hundred forty-two thousand ninety
- Ordinal
- 8742090th
- Binary
- 100001010110010011001010
- Octal
- 41262312
- Hexadecimal
- 0x8564CA
- Base64
- hWTK
- One's complement
- 4,286,225,205 (32-bit)
- Scientific notation
- 8.74209 × 10⁶
- As a duration
- 8,742,090 s = 101 days, 4 hours, 21 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓁨𓁨𓁨𓁨𓁨𓁨𓁨𓁨𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Chinese
- 八百七十四萬二千零九十
- Chinese (financial)
- 捌佰柒拾肆萬貳仟零玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8742090, here are decompositions:
- 13 + 8742077 = 8742090
- 23 + 8742067 = 8742090
- 31 + 8742059 = 8742090
- 53 + 8742037 = 8742090
- 79 + 8742011 = 8742090
- 101 + 8741989 = 8742090
- 103 + 8741987 = 8742090
- 107 + 8741983 = 8742090
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.133.100.202.
- Address
- 0.133.100.202
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.133.100.202
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 8,742,090 and was likely granted around 2014.
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°.