Base | Representation |
---|---|
bin | 1010101110101… |
… | …10111000001100 |
3 | 20021100221021101 |
4 | 11113112320030 |
5 | 141020242400 |
6 | 12533112444 |
7 | 2142031126 |
oct | 527267014 |
9 | 207327241 |
10 | 90009100 |
11 | 46898195 |
12 | 26188724 |
13 | 1585612c |
14 | bd50216 |
15 | 7d7e56a |
hex | 55d6e0c |
90009100 has 18 divisors (see below), whose sum is σ = 195319964. Its totient is φ = 36003600.
The previous prime is 90009053. The next prime is 90009119. The reversal of 90009100 is 190009.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 449946 + ... + 450145.
Almost surely, 290009100 is an apocalyptic number.
It is an amenable number.
90009100 is an abundant number, since it is smaller than the sum of its proper divisors (105310864).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90009100 is a wasteful number, since it uses less digits than its factorization.
90009100 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 900105 (or 900098 counting only the distinct ones).
The product of its (nonzero) digits is 81, while the sum is 19.
The square root of 90009100 is about 9487.3125804940. The cubic root of 90009100 is about 448.1555781405.
Adding to 90009100 its reverse (190009), we get a palindrome (90199109).
It can be divided in two parts, 90009 and 100, that added together give a palindrome (90109).
The spelling of 90009100 in words is "ninety million, nine thousand, one hundred".
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