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
The Root chorus "feeds back into itself over and over again, turning from a hook into a mantra into a gospel affirmation". In the promotional EPK for "Voodoo", D'Angelo discussed the therapeutic nature of recording "The Root", stating "It was kinda therapeutic for me to do this song. It kinda help me get over, because I'm so pathetic in the song. You know what I mean? That's what 'The Root' is. She got it on me. And I'm just fucked up. It was good for me to get over that. It was hard for me sometimes to do that song. To record