141 (number)
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Template:Infobox number 141 (one hundred [and] forty-one) is the natural number following 140 and preceding 142.
In mathematics
141 is:
- a centered pentagonal number.[1]
- the sum of the sums of the divisors of the first 13 positive integers.[2]
- the second n to give a prime Cullen number (of the form n2n + 1).[3]
- an undulating number in base 10, with the previous being 131, and the next being 151.
- the sixth hendecagonal (11-gonal) number.[4]
- 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.
- a Hilbert prime
References
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- ↑ Template:Cite OEIS
- ↑ Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 139
- ↑ Script error: No such module "citation/CS1".