145,372
145,372 is a composite number, even.
145,372 (one hundred forty-five thousand three hundred seventy-two) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 36,343. Written other ways, in hexadecimal, 0x237DC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 840
- Digital root
- 4
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 273,541
- Recamán's sequence
- a(217,672) = 145,372
- Square (n²)
- 21,133,018,384
- Cube (n³)
- 3,072,149,148,518,848
- Divisor count
- 6
- σ(n) — sum of divisors
- 254,408
- φ(n) — Euler's totient
- 72,684
- Sum of prime factors
- 36,347
Primality
Prime factorization: 2 2 × 36343
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√145,372 = [381; (3, 1, 1, 1, 1, 2, 1, 1, 4, 4, 1, 1, 1, 3, 3, 3, 1, 9, 1, 4, 1, 1, 1, 13, …)]
Representations
- In words
- one hundred forty-five thousand three hundred seventy-two
- Ordinal
- 145372nd
- Binary
- 100011011111011100
- Octal
- 433734
- Hexadecimal
- 0x237DC
- Base64
- Ajfc
- One's complement
- 4,294,821,923 (32-bit)
- Scientific notation
- 1.45372 × 10⁵
- As a duration
- 145,372 s = 1 day, 16 hours, 22 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμετοβʹ
- Mayan (base 20)
- 𝋲·𝋣·𝋨·𝋬
- Chinese
- 一十四萬五千三百七十二
- Chinese (financial)
- 壹拾肆萬伍仟參佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 145372, here are decompositions:
- 11 + 145361 = 145372
- 23 + 145349 = 145372
- 83 + 145289 = 145372
- 89 + 145283 = 145372
- 113 + 145259 = 145372
- 179 + 145193 = 145372
- 233 + 145139 = 145372
- 239 + 145133 = 145372
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 9F 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.55.220.
- Address
- 0.2.55.220
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.55.220
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 145,372 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 145372 first appears in π at position 7,075 of the decimal expansion (the 7,075ordinal-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.