142 (number)

Short description: Natural number

| <- 141  | 142 |  143 ->

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← 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
Binary| 100011102
Ternary| 120213
Quaternary| 20324
Quinary| 10325
Senary| 3546
Octal| 2168
Duodecimal| BA12
Hexadecimal| 8E16
Vigesimal| 7220
Base 36| 3Y36

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]

## See also

* The year AD 142 or 142 BC
* List of highways numbered 142
* All pages with titles containing 142

## References

1. ↑ Sloane, N. J. A., ed. "Sequence A001865 (Number of connected functions on n labeled nodes)". OEIS Foundation. https://oeis.org/A001865.
2. ↑ Sloane, N. J. A., ed. "Sequence A005470 (Number of unlabeled planar simple graphs with n nodes)". OEIS Foundation. https://oeis.org/A005470.
3. ↑ Sloane, N. J. A., ed. "Sequence A005425". OEIS Foundation. https://oeis.org/A005425.

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