149,520
149,520 is a composite number, even.
149,520 (one hundred forty-nine thousand five hundred twenty) is an even 6-digit number. It is a composite number with 80 divisors, and factors as 2⁴ × 3 × 5 × 7 × 89. Its proper divisors sum to 386,160, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x24810.
Interestingness
Properties
Primality
Prime factorization: 2 4 × 3 × 5 × 7 × 89
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√149,520 = [386; (1, 2, 9, 2, 1, 772)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-nine thousand five hundred twenty
- Ordinal
- 149520th
- Binary
- 100100100000010000
- Octal
- 444020
- Hexadecimal
- 0x24810
- Base64
- AkgQ
- One's complement
- 4,294,817,775 (32-bit)
- Scientific notation
- 1.4952 × 10⁵
- As a duration
- 149,520 s = 1 day, 17 hours, 32 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρμθφκʹ
- Mayan (base 20)
- 𝋲·𝋭·𝋰·𝋠
- Chinese
- 一十四萬九千五百二十
- Chinese (financial)
- 壹拾肆萬玖仟伍佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 149520, here are decompositions:
- 17 + 149503 = 149520
- 23 + 149497 = 149520
- 29 + 149491 = 149520
- 31 + 149489 = 149520
- 61 + 149459 = 149520
- 79 + 149441 = 149520
- 97 + 149423 = 149520
- 101 + 149419 = 149520
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A4 A0 90 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.72.16.
- Address
- 0.2.72.16
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.72.16
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 149,520 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 149520 first appears in π at position 616,108 of the decimal expansion (the 616,108ordinal-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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.