Base | Representation |
---|---|
bin | 101010000110001110… |
… | …0111101001011001001 |
3 | 22122100100121221020221 |
4 | 1110030130331023021 |
5 | 2440121211333114 |
6 | 105310342550041 |
7 | 6350163531262 |
oct | 1241434751311 |
9 | 278310557227 |
10 | 90403230409 |
11 | 353812a3068 |
12 | 1562ba38321 |
13 | 86a952505b |
14 | 45386a3969 |
15 | 254197c524 |
hex | 150c73d2c9 |
90403230409 has 8 divisors (see below), whose sum is σ = 93343449600. Its totient is φ = 87464510400.
The previous prime is 90403230391. The next prime is 90403230413.
90403230409 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 90403230409 - 29 = 90403229897 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (90403230439) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251584 + ... + 494065.
It is an arithmetic number, because the mean of its divisors is an integer number (11667931200).
Almost surely, 290403230409 is an apocalyptic number.
It is an amenable number.
90403230409 is a deficient number, since it is larger than the sum of its proper divisors (2940219191).
90403230409 is a wasteful number, since it uses less digits than its factorization.
90403230409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 749591.
The product of its (nonzero) digits is 23328, while the sum is 34.
The spelling of 90403230409 in words is "ninety billion, four hundred three million, two hundred thirty thousand, four hundred nine".
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