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Number

1,377

1,377 is a composite number, odd, a calendar year.

Deficient Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Year

Historical context — 1377 AD

Calendar year

Year 1377 (MCCCLXXVII) was a common year starting on Thursday of the Julian calendar.

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Year facts

Year type
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year
365
ISO weeks
52
Started on
Wednesday
January 1, 1377
Ended on
Wednesday
December 31, 1377
Friday the 13ths
1
One Friday the 13th this year.
Decade
1370s
1370–1379
Century
14th century
1301–1400
Millennium
2nd millennium
1001–2000
Years ago
649
649 years before 2026.

In other calendars

Hebrew
5137 / 5138 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
778 / 779 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Fire zodiac:Snake
Sexagenary cycle position 54 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
1920 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
755 / 756 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1369 / 1370 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1299 / 1298 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
18
Digit product
147
Digital root
9
Palindrome
No
Bit width
11 bits
Reversed
7,731
Recamán's sequence
a(8,374) = 1,377
Square (n²)
1,896,129
Cube (n³)
2,610,969,633
Divisor count
10
σ(n) — sum of divisors
2,178
φ(n) — Euler's totient
864
Sum of prime factors
29

Primality

Prime factorization: 3 4 × 17

Nearest primes: 1,373 (−4) · 1,381 (+4)

Divisors & multiples

All divisors (10)
1 · 3 · 9 · 17 · 27 · 51 · 81 · 153 · 459 · 1377
Aliquot sum (sum of proper divisors): 801
Factor pairs (a × b = 1,377)
1 × 1377
3 × 459
9 × 153
17 × 81
27 × 51
First multiples
1,377 · 2,754 (double) · 4,131 · 5,508 · 6,885 · 8,262 · 9,639 · 11,016 · 12,393 · 13,770

Sums & aliquot sequence

As a sum of two squares: 9² + 36²
As consecutive integers: 688 + 689 458 + 459 + 460 227 + 228 + 229 + 230 + 231 + 232 149 + 150 + … + 157
Aliquot sequence: 1,377 801 369 177 63 41 1 0 — terminates at zero

Representations

In words
one thousand three hundred seventy-seven
Ordinal
1377th
Roman numeral
MCCCLXXVII
Binary
10101100001
Octal
2541
Hexadecimal
0x561
Base64
BWE=
One's complement
64,158 (16-bit)
In other bases
ternary (3) 1220000
quaternary (4) 111201
quinary (5) 21002
senary (6) 10213
septenary (7) 4005
nonary (9) 1800
undecimal (11) 1042
duodecimal (12) 969
tridecimal (13) 81c
tetradecimal (14) 705
pentadecimal (15) 61c

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ατοζʹ
Mayan (base 20)
𝋣·𝋨·𝋱
Chinese
一千三百七十七
Chinese (financial)
壹仟參佰柒拾柒
In other modern scripts
Eastern Arabic ١٣٧٧ Devanagari १३७७ Bengali ১৩৭৭ Tamil ௧௩௭௭ Thai ๑๓๗๗ Tibetan ༡༣༧༧ Khmer ១៣៧៧ Lao ໑໓໗໗ Burmese ၁၃၇၇

Digit at this position in famous constants

π — Pi (π)
Digit 1,377 = 7
e — Euler's number (e)
Digit 1,377 = 2
φ — Golden ratio (φ)
Digit 1,377 = 4
√2 — Pythagoras's (√2)
Digit 1,377 = 2
ln 2 — Natural log of 2
Digit 1,377 = 1
γ — Euler-Mascheroni (γ)
Digit 1,377 = 0

Also seen as

Unicode codepoint
ա
Armenian Small Letter Ayb
U+0561
Lowercase letter (Ll)

UTF-8 encoding: D5 A1 (2 bytes).

Hex color
#000561
RGB(0, 5, 97)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.97.

Address
0.0.5.97
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.5.97

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

Position in π

The digit sequence 1377 first appears in π at position 6,461 of the decimal expansion (the 6,461ordinal-suffix:st 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.