142 (number)

← 141 142 143 →
← 140 141 142 143 144 145 146 147 148 149 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	one hundred forty-two
Ordinal	142nd (one hundred forty-second)
Factorization	2 × 71
Divisors	1, 2, 71, 142
Greek numeral	ΡΜΒ´
Roman numeral	CXLII, cxlii
Binary	100011102
Ternary	120213
Senary	3546
Octal	2168
Duodecimal	BA12
Hexadecimal	8E16

142 (one hundred [and] forty-two) is the natural number following 141 and preceding 143.

In mathematics

There are 142 connected functional graphs on four labeled vertices, ^[1] 142 planar graphs with 6 unlabeled vertices, ^[2] and 142 partial involutions on five elements. ^[3] It is also palindromic in base 3 (12021).

In memoriam

At the United States Merchant Marine Academy, the number '142' represents 142 Cadet/Midshipmen who died aboard merchant vessels during World War II. The U.S. Merchant Marine Academy, among the nation's five federal academies, is the only institution authorized to carry a battle standard as part of its color guard. The battle standard bears the number "142" on a field of red, white and blue.

References

1. Sloane, N. J. A. (ed.). "SequenceA001865(Number of connected functions on n labeled nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
2. Sloane, N. J. A. (ed.). "SequenceA005470(Number of unlabeled planar simple graphs with n nodes)". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.
3. Sloane, N. J. A. (ed.). "SequenceA005425". The On-Line Encyclopedia of Integer Sequences . OEIS Foundation.