149,721
149,721 is a composite number, odd.
149,721 (one hundred forty-nine thousand seven hundred twenty-one) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3 × 11 × 13 × 349. Written other ways, in hexadecimal, 0x248D9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 504
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 127,941
- Square (n²)
- 22,416,377,841
- Cube (n³)
- 3,356,202,506,732,361
- Divisor count
- 16
- σ(n) — sum of divisors
- 235,200
- φ(n) — Euler's totient
- 83,520
- Sum of prime factors
- 376
Primality
Prime factorization: 3 × 11 × 13 × 349
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,721 = [386; (1, 15, 8, 11, 1, 30, 26, 1, 1, 1, 7, 2, 14, 1, 2, 2, 1, 1, 2, 3, 1, 8, 45, 2, …)]
Representations
- In words
- one hundred forty-nine thousand seven hundred twenty-one
- Ordinal
- 149721st
- Binary
- 100100100011011001
- Octal
- 444331
- Hexadecimal
- 0x248D9
- Base64
- AkjZ
- One's complement
- 4,294,817,574 (32-bit)
- Scientific notation
- 1.49721 × 10⁵
- As a duration
- 149,721 s = 1 day, 17 hours, 35 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρμθψκαʹ
- Mayan (base 20)
- 𝋲·𝋮·𝋦·𝋡
- Chinese
- 一十四萬九千七百二十一
- Chinese (financial)
- 壹拾肆萬玖仟柒佰貳拾壹
Also seen as
UTF-8 encoding: F0 A4 A3 99 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.72.217.
- Address
- 0.2.72.217
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.72.217
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 149,721 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.