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3,960

3,960 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Abundant Number Evil Number Gapful Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
12 bits
Reversed
693
Recamán's sequence
a(14,471) = 3,960
Square (n²)
15,681,600
Cube (n³)
62,099,136,000
Divisor count
48
σ(n) — sum of divisors
14,040
φ(n) — Euler's totient
960
Sum of prime factors
28

Primality

Prime factorization: 2 3 × 3 2 × 5 × 11

Nearest primes: 3,947 (−13) · 3,967 (+7)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 11 · 12 · 15 · 18 · 20 · 22 · 24 · 30 · 33 · 36 · 40 · 44 · 45 · 55 · 60 · 66 · 72 · 88 · 90 · 99 · 110 · 120 · 132 · 165 · 180 · 198 · 220 · 264 · 330 · 360 · 396 · 440 · 495 · 660 · 792 · 990 · 1320 · 1980 (half) · 3960
Aliquot sum (sum of proper divisors): 10,080
Factor pairs (a × b = 3,960)
1 × 3960
2 × 1980
3 × 1320
4 × 990
5 × 792
6 × 660
8 × 495
9 × 440
10 × 396
11 × 360
12 × 330
15 × 264
18 × 220
20 × 198
22 × 180
24 × 165
30 × 132
33 × 120
36 × 110
40 × 99
44 × 90
45 × 88
55 × 72
60 × 66
First multiples
3,960 · 7,920 (double) · 11,880 · 15,840 · 19,800 · 23,760 · 27,720 · 31,680 · 35,640 · 39,600

Sums & aliquot sequence

As consecutive integers: 1,319 + 1,320 + 1,321 790 + 791 + 792 + 793 + 794 436 + 437 + … + 444 355 + 356 + … + 365
Aliquot sequence: 3,960 10,080 29,232 67,488 124,032 243,168 437,232 692,408 638,152 558,398 304,810 332,822 237,754 158,822 79,414 41,906 23,758 — unresolved within range

Representations

In words
three thousand nine hundred sixty
Ordinal
3960th
Roman numeral
MMMCMLX
Binary
111101111000
Octal
7570
Hexadecimal
0xF78
Base64
D3g=
One's complement
61,575 (16-bit)
In other bases
ternary (3) 12102200
quaternary (4) 331320
quinary (5) 111320
senary (6) 30200
septenary (7) 14355
nonary (9) 5380
undecimal (11) 2a80
duodecimal (12) 2360
tridecimal (13) 1a58
tetradecimal (14) 162c
pentadecimal (15) 1290

Historical numeral systems

Babylonian (base 60)
𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵γϡξʹ
Mayan (base 20)
𝋩·𝋲·𝋠
Chinese
三千九百六十
Chinese (financial)
參仟玖佰陸拾
In other modern scripts
Eastern Arabic ٣٩٦٠ Devanagari ३९६० Bengali ৩৯৬০ Tamil ௩௯௬௦ Thai ๓๙๖๐ Tibetan ༣༩༦༠ Khmer ៣៩៦០ Lao ໓໙໖໐ Burmese ၃၉၆၀

Digit at this position in famous constants

π — Pi (π)
Digit 3,960 = 1
e — Euler's number (e)
Digit 3,960 = 8
φ — Golden ratio (φ)
Digit 3,960 = 3
√2 — Pythagoras's (√2)
Digit 3,960 = 3
ln 2 — Natural log of 2
Digit 3,960 = 9
γ — Euler-Mascheroni (γ)
Digit 3,960 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 3960, here are decompositions:

  • 13 + 3947 = 3960
  • 17 + 3943 = 3960
  • 29 + 3931 = 3960
  • 31 + 3929 = 3960
  • 37 + 3923 = 3960
  • 41 + 3919 = 3960
  • 43 + 3917 = 3960
  • 53 + 3907 = 3960

Showing the first eight; more decompositions exist.

Unicode codepoint
Tibetan Vowel Sign Vocalic L
U+0F78
Non-spacing mark (Mn)

UTF-8 encoding: E0 BD B8 (3 bytes).

Hex color
#000F78
RGB(0, 15, 120)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.120.

Address
0.0.15.120
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.15.120

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 3960 first appears in π at position 17,946 of the decimal expansion (the 17,946ordinal-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.