122,700
122,700 is a composite number, even.
122,700 (one hundred twenty-two thousand seven hundred) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3 × 5² × 409. Its proper divisors sum to 233,180, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1DF4C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 7,221
- Recamán's sequence
- a(30,284) = 122,700
- Square (n²)
- 15,055,290,000
- Cube (n³)
- 1,847,284,083,000,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 355,880
- φ(n) — Euler's totient
- 32,640
- Sum of prime factors
- 426
Primality
Prime factorization: 2 2 × 3 × 5 2 × 409
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,700 = [350; (3, 1, 1, 174, 1, 1, 3, 700)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-two thousand seven hundred
- Ordinal
- 122700th
- Binary
- 11101111101001100
- Octal
- 357514
- Hexadecimal
- 0x1DF4C
- Base64
- Ad9M
- One's complement
- 4,294,844,595 (32-bit)
- Scientific notation
- 1.227 × 10⁵
- As a duration
- 122,700 s = 1 day, 10 hours, 5 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρκβψʹ
- Mayan (base 20)
- 𝋯·𝋦·𝋯·𝋠
- Chinese
- 一十二萬二千七百
- Chinese (financial)
- 壹拾貳萬貳仟柒佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 122700, here are decompositions:
- 7 + 122693 = 122700
- 37 + 122663 = 122700
- 47 + 122653 = 122700
- 89 + 122611 = 122700
- 101 + 122599 = 122700
- 103 + 122597 = 122700
- 139 + 122561 = 122700
- 167 + 122533 = 122700
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.223.76.
- Address
- 0.1.223.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.223.76
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 122,700 and was likely granted around 1871.
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°.