400 (number) third perfect number, a number whose divisors add up to the actual number (1+2+4+8+16+31+62+124+248=496). 497 = 7 × 71, sum of five consecutive primes (89 + 97 + 101 + 103 + 107) 498 = 2 × 3 × 83, sphenic number, untouchable number, admirable number, abundant number A prime number, Chen prime 400 (number) 400 (four hundred) is the natural number following 399 and preceding 401. 400 is the square of 20. 400 is the sum of the powers of 7 from 0 to 3, thus making it a repdigit in base 7 (1111). A circle is divided into
This Is What You Came For among artists to 73). "This Is What You Came For" became Rihanna's 25th and Harris's fourth number one on the Hot Dance Club Songs Chart, where it became the first song since 2013's "Wake Me Up" to stay at number one for two weeks. As of October 2016, the single has sold 1.2 million copies in the United States. "This Is What You Came For" debuted at number one on the Scottish Singles Chart, and peaked at number one in Australia, Canada and Ireland. The song also reached the top 10 in Germany, Ireland, New Zealand, Switzerland, Belgium, Denmark, Finland,