145,672
145,672 is a composite number, even.
145,672 (one hundred forty-five thousand six hundred seventy-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 131 × 139. Written other ways, in hexadecimal, 0x23908.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 1,680
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 276,541
- Recamán's sequence
- a(217,072) = 145,672
- Square (n²)
- 21,220,331,584
- Cube (n³)
- 3,091,208,142,504,448
- Divisor count
- 16
- σ(n) — sum of divisors
- 277,200
- φ(n) — Euler's totient
- 71,760
- Sum of prime factors
- 276
Primality
Prime factorization: 2 3 × 131 × 139
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√145,672 = [381; (1, 2, 32, 1, 5, 1, 9, 1, 2, 1, 12, 1, 7, 1, 5, 1, 1, 8, 1, 7, 1, 2, 7, 15, …)]
Representations
- In words
- one hundred forty-five thousand six hundred seventy-two
- Ordinal
- 145672nd
- Binary
- 100011100100001000
- Octal
- 434410
- Hexadecimal
- 0x23908
- Base64
- AjkI
- One's complement
- 4,294,821,623 (32-bit)
- Scientific notation
- 1.45672 × 10⁵
- As a duration
- 145,672 s = 1 day, 16 hours, 27 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρμεχοβʹ
- Mayan (base 20)
- 𝋲·𝋤·𝋣·𝋬
- Chinese
- 一十四萬五千六百七十二
- Chinese (financial)
- 壹拾肆萬伍仟陸佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 145672, here are decompositions:
- 11 + 145661 = 145672
- 29 + 145643 = 145672
- 71 + 145601 = 145672
- 83 + 145589 = 145672
- 239 + 145433 = 145672
- 281 + 145391 = 145672
- 311 + 145361 = 145672
- 383 + 145289 = 145672
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 A4 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.57.8.
- Address
- 0.2.57.8
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.57.8
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 145,672 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 145672 first appears in π at position 230,314 of the decimal expansion (the 230,314ordinal-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.