142,900
142,900 is a composite number, even.
142,900 (one hundred forty-two thousand nine hundred) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 5² × 1,429. Its proper divisors sum to 167,410, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x22E34.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 9,241
- Recamán's sequence
- a(222,616) = 142,900
- Square (n²)
- 20,420,410,000
- Cube (n³)
- 2,918,076,589,000,000
- Divisor count
- 18
- σ(n) — sum of divisors
- 310,310
- φ(n) — Euler's totient
- 57,120
- Sum of prime factors
- 1,443
Primality
Prime factorization: 2 2 × 5 2 × 1429
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,900 = [378; (47, 3, 1, 46, 1, 1, 188, 1, 1, 46, 1, 3, 47, 756)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand nine hundred
- Ordinal
- 142900th
- Binary
- 100010111000110100
- Octal
- 427064
- Hexadecimal
- 0x22E34
- Base64
- Ai40
- One's complement
- 4,294,824,395 (32-bit)
- Scientific notation
- 1.429 × 10⁵
- As a duration
- 142,900 s = 1 day, 15 hours, 41 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ρμβϡʹ
- Mayan (base 20)
- 𝋱·𝋱·𝋥·𝋠
- Chinese
- 一十四萬二千九百
- Chinese (financial)
- 壹拾肆萬貳仟玖佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142900, here are decompositions:
- 3 + 142897 = 142900
- 29 + 142871 = 142900
- 59 + 142841 = 142900
- 89 + 142811 = 142900
- 101 + 142799 = 142900
- 113 + 142787 = 142900
- 167 + 142733 = 142900
- 227 + 142673 = 142900
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A2 B8 B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.52.
- Address
- 0.2.46.52
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.46.52
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 142,900 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 142900 first appears in π at position 93,925 of the decimal expansion (the 93,925ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.