142,208
142,208 is a composite number, even.
142,208 (one hundred forty-two thousand two hundred eight) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 11 × 101. Its proper divisors sum to 169,912, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22B80.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 802,241
- Recamán's sequence
- a(39,728) = 142,208
- Square (n²)
- 20,223,115,264
- Cube (n³)
- 2,875,888,775,462,912
- Divisor count
- 32
- σ(n) — sum of divisors
- 312,120
- φ(n) — Euler's totient
- 64,000
- Sum of prime factors
- 126
Primality
Prime factorization: 2 7 × 11 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,208 = [377; (9, 1, 1, 4, 1, 46, 3, 7, 2, 3, 1, 187, 1, 3, 2, 7, 3, 46, 1, 4, 1, 1, 9, 754)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand two hundred eight
- Ordinal
- 142208th
- Binary
- 100010101110000000
- Octal
- 425600
- Hexadecimal
- 0x22B80
- Base64
- AiuA
- One's complement
- 4,294,825,087 (32-bit)
- Scientific notation
- 1.42208 × 10⁵
- As a duration
- 142,208 s = 1 day, 15 hours, 30 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβσηʹ
- Mayan (base 20)
- 𝋱·𝋯·𝋪·𝋨
- Chinese
- 一十四萬二千二百零八
- Chinese (financial)
- 壹拾肆萬貳仟貳佰零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142208, here are decompositions:
- 19 + 142189 = 142208
- 97 + 142111 = 142208
- 109 + 142099 = 142208
- 151 + 142057 = 142208
- 271 + 141937 = 142208
- 277 + 141931 = 142208
- 337 + 141871 = 142208
- 379 + 141829 = 142208
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 AE 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.43.128.
- Address
- 0.2.43.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.43.128
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 142,208 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 142208 first appears in π at position 127,415 of the decimal expansion (the 127,415ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.