126,120
126,120 is a composite number, even.
126,120 (one hundred twenty-six thousand one hundred twenty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 5 × 1,051. Its proper divisors sum to 252,600, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1ECA8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 21,621
- Recamán's sequence
- a(233,924) = 126,120
- Square (n²)
- 15,906,254,400
- Cube (n³)
- 2,006,096,804,928,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 378,720
- φ(n) — Euler's totient
- 33,600
- Sum of prime factors
- 1,065
Primality
Prime factorization: 2 3 × 3 × 5 × 1051
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√126,120 = [355; (7, 2, 9, 1, 1, 6, 4, 5, 1, 1, 1, 2, 3, 2, 1, 13, 1, 3, 1, 28, 1, 3, 1, 13, …)]
Period length 40 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-six thousand one hundred twenty
- Ordinal
- 126120th
- Binary
- 11110110010101000
- Octal
- 366250
- Hexadecimal
- 0x1ECA8
- Base64
- Aeyo
- One's complement
- 4,294,841,175 (32-bit)
- Scientific notation
- 1.2612 × 10⁵
- As a duration
- 126,120 s = 1 day, 11 hours, 2 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκϛρκʹ
- Mayan (base 20)
- 𝋯·𝋯·𝋦·𝋠
- Chinese
- 一十二萬六千一百二十
- Chinese (financial)
- 壹拾貳萬陸仟壹佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 126120, here are decompositions:
- 13 + 126107 = 126120
- 23 + 126097 = 126120
- 41 + 126079 = 126120
- 53 + 126067 = 126120
- 73 + 126047 = 126120
- 79 + 126041 = 126120
- 83 + 126037 = 126120
- 89 + 126031 = 126120
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9E B2 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.236.168.
- Address
- 0.1.236.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.236.168
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 126,120 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 126120 first appears in π at position 553,903 of the decimal expansion (the 553,903ordinal-suffix:rd 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°.