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# 141 (number)

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 Title: 141 (number) Author: World Heritage Encyclopedia Language: English Subject: Collection: Integers Publisher: World Heritage Encyclopedia Publication Date:

### 141 (number)

 ← 140 141 142 →
Cardinal one hundred forty-one
Ordinal 141st
(one hundred and forty-first)
Factorization 3 × 47
Divisors 1, 3, 47, 141
Roman numeral CXLI
Binary 100011012
Ternary 120203
Quaternary 20314
Quinary 10315
Senary 3536
Octal 2158
Duodecimal B912
Vigesimal 7120
Base 36 3X36

141 (one hundred [and] forty-one) is the natural number following 140 and preceding 142.

## Contents

• In mathematics 1
• In the military 2
• In transportation 3
• In other fields 4
• References 6

## In mathematics

141 is a centered pentagonal number. It is the sum of the sums of divisors of the first thirteen integers.

141 is the second n to give a prime Cullen number (of the form n2n + 1).[1]

141 is an undulating number in base 10, with the previous being 131, and the next being 151.

141 is the sixth hendecagonal (11-gonal) number.

141 is a semiprime: a product of two prime numbers, namely 3 and 47. Since those prime factors are Gaussian primes, this means that 141 is a Blum integer.

141 is also:

## References

1. ^ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 139
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