Live analysis

4,020

4,020 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 Arithmetic Number Evil Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity: Even
Digit count: 4
Digit sum: 6
Digit product: 0
Digital root: 6
Palindrome: No
Bit width: 12 bits
Reversed: 204
Recamán's sequence: a(14,351) = 4,020
Square (n²): 16,160,400
Cube (n³): 64,964,808,000
Divisor count: 24
σ(n) — sum of divisors: 11,424
φ(n) — Euler's totient: 1,056
Sum of prime factors: 79

Primality

Prime factorization: 2 ² × 3 × 5 × 67

Nearest primes: 4,019 (−1) · 4,021 (+1)

Divisors & multiples

All divisors (24)

1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 60 · 67 · 134 · 201 · 268 · 335 · 402 · 670 · 804 · 1005 · 1340 · 2010 (half) · 4020

Aliquot sum (sum of proper divisors): 7,404

Factor pairs (a × b = 4,020)

1 × 4020

2 × 2010

3 × 1340

4 × 1005

5 × 804

6 × 670

10 × 402

12 × 335

15 × 268

20 × 201

30 × 134

60 × 67

First multiples

4,020 · 8,040 (double) · 12,060 · 16,080 · 20,100 · 24,120 · 28,140 · 32,160 · 36,180 · 40,200

Sums & aliquot sequence

As consecutive integers: 1,339 + 1,340 + 1,341 802 + 803 + 804 + 805 + 806 499 + 500 + … + 506 261 + 262 + … + 275

Aliquot sequence: 4,020 → 7,404 → 9,900 → 23,952 → 38,048 → 41,332 → 31,006 → 16,874 → 13,366 → 7,298 → 4,042 → 2,294 → 1,354 → 680 → 940 → 1,076 → 814 — unresolved within range

Representations

In words: four thousand twenty
Ordinal: 4020th
Binary: 111110110100
Octal: 7664
Hexadecimal: 0xFB4
Base64: D7Q=
One's complement: 61,515 (16-bit)

In other bases

ternary (3) 12111220

quaternary (4) 332310

quinary (5) 112040

senary (6) 30340

septenary (7) 14502

nonary (9) 5456

undecimal (11) 3025

duodecimal (12) 23b0

tridecimal (13) 1aa3

tetradecimal (14) 1672

pentadecimal (15) 12d0

Historical numeral systems

Babylonian (base 60): 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓎆𓎆
Greek (Milesian): ͵δκʹ
Mayan (base 20): 𝋪·𝋡·𝋠
Chinese: 四千零二十
Chinese (financial): 肆仟零貳拾

In other modern scripts

Eastern Arabic ٤٠٢٠ Devanagari ४०२० Bengali ৪০২০ Tamil ௪௦௨௦ Thai ๔๐๒๐ Tibetan ༤༠༢༠ Khmer ៤០២០ Lao ໔໐໒໐ Burmese ၄၀၂၀

Digit at this position in famous constants

π — Pi (π): Digit 4,020 = 8
e — Euler's number (e): Digit 4,020 = 5
φ — Golden ratio (φ): Digit 4,020 = 9
√2 — Pythagoras's (√2): Digit 4,020 = 6
ln 2 — Natural log of 2: Digit 4,020 = 5
γ — Euler-Mascheroni (γ): Digit 4,020 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4020, here are decompositions:

7 + 4013 = 4020
13 + 4007 = 4020
17 + 4003 = 4020
19 + 4001 = 4020
31 + 3989 = 4020
53 + 3967 = 4020
73 + 3947 = 4020
89 + 3931 = 4020

Showing the first eight; more decompositions exist.

Unicode codepoint

ྴ

Tibetan Subjoined Letter Sha

U+0FB4

Non-spacing mark (Mn)

UTF-8 encoding: E0 BE B4 (3 bytes).

Lookup U+0FB4 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000FB4

RGB(0, 15, 180)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.15.180.

Address: 0.0.15.180
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.15.180

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

Position in π

The digit sequence 4020 first appears in π at position 21,860 of the decimal expansion (the 21,860ordinal-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.

Look up 4020 on Pi Search ↗