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153 (number)

153 (one hundred fifty-three) is the natural number following 152 and preceding 154. [1]

In recreational mathematics, a harshad number (or Niven number) in a given number base, is an integer that is divisible by the sum of its digits when written in that base.

Hexagonal number

A hexagonal number is a figurate number.

Narcissistic number

In recreational number theory, a narcissistic number by Scott Moore (also known as a pluperfect digital invariant (PPDI), an Armstrong number (after Michael F. Armstrong) or a plus perfect number) is a number that is the sum of its own digits each raised to the power of the number of digits.

Ruth–Aaron pair

In mathematics, a Ruth–Aaron pair consists of two consecutive integers (e.g., 714 and 715) for which the sums of the prime factors of each integer are equal: and There are different variations in the definition, depending on how many times to count primes that appear multiple times in a factorization.

St Paul's School, London

St Paul's School is a selective independent school for boys aged 13–18, founded in 1509 by John Colet and located on a 43-acre (180,000m2) site by the River Thames, in Barnes, London.

Table of divisors

The tables below list all of the divisors of the numbers 1 to 1000.

Table of prime factors

The tables contain the prime factorization of the natural numbers from 1 to 1000.

152 (number)

152 (one hundred fifty-two) is the natural number following 151 and preceding 153.

154 (number)

154 (one hundred fifty-four) is the natural number following 153 and preceding 155.

192 (number)

192 (one hundred ninety-two) is the natural number following 191 and preceding 193.

References

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