146,720
146,720 is a composite number, even.
146,720 (one hundred forty-six thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 5 × 7 × 131. Its proper divisors sum to 252,448, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x23D20.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 27,641
- Recamán's sequence
- a(214,976) = 146,720
- Square (n²)
- 21,526,758,400
- Cube (n³)
- 3,158,405,992,448,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 399,168
- φ(n) — Euler's totient
- 49,920
- Sum of prime factors
- 153
Primality
Prime factorization: 2 5 × 5 × 7 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√146,720 = [383; (24, 1, 2, 2, 5, 1, 3, 191, 3, 1, 5, 2, 2, 1, 24, 766)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-six thousand seven hundred twenty
- Ordinal
- 146720th
- Binary
- 100011110100100000
- Octal
- 436440
- Hexadecimal
- 0x23D20
- Base64
- Aj0g
- One's complement
- 4,294,820,575 (32-bit)
- Scientific notation
- 1.4672 × 10⁵
- As a duration
- 146,720 s = 1 day, 16 hours, 45 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμϛψκʹ
- Mayan (base 20)
- 𝋲·𝋦·𝋰·𝋠
- Chinese
- 一十四萬六千七百二十
- Chinese (financial)
- 壹拾肆萬陸仟柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 146720, here are decompositions:
- 19 + 146701 = 146720
- 37 + 146683 = 146720
- 43 + 146677 = 146720
- 73 + 146647 = 146720
- 103 + 146617 = 146720
- 139 + 146581 = 146720
- 157 + 146563 = 146720
- 181 + 146539 = 146720
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A3 B4 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.61.32.
- Address
- 0.2.61.32
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.61.32
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 146,720 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.