Base | Representation |
---|---|
bin | 100110010100… |
… | …0100001010000 |
3 | 1101210121210210 |
4 | 1030220201100 |
5 | 20120321122 |
6 | 1554324120 |
7 | 332516154 |
oct | 114504120 |
9 | 41717723 |
10 | 20088912 |
11 | 10381108 |
12 | 6889640 |
13 | 4214a3c |
14 | 294d064 |
15 | 1b6c40c |
hex | 1328850 |
20088912 has 40 divisors (see below), whose sum is σ = 53108704. Its totient is φ = 6539904.
The previous prime is 20088911. The next prime is 20088923. The reversal of 20088912 is 21988002.
It is a self number, because there is not a number n which added to its sum of digits gives 20088912.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20088911) 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, 2803 + ... + 6930.
Almost surely, 220088912 is an apocalyptic number.
It is an amenable number.
20088912 is an abundant number, since it is smaller than the sum of its proper divisors (33019792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20088912 is a wasteful number, since it uses less digits than its factorization.
20088912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9787 (or 9781 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 30.
The square root of 20088912 is about 4482.0655952362. The cubic root of 20088912 is about 271.8434075591.
The spelling of 20088912 in words is "twenty million, eighty-eight thousand, nine hundred twelve".
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