Base | Representation |
---|---|
bin | 100110010000… |
… | …1111011011000 |
3 | 1101202020202210 |
4 | 1030201323120 |
5 | 20113440122 |
6 | 1553555120 |
7 | 332344353 |
oct | 114417330 |
9 | 41666683 |
10 | 20061912 |
11 | 103628a2 |
12 | 6875aa0 |
13 | 4205670 |
14 | 294329a |
15 | 1b6440c |
hex | 1321ed8 |
20061912 has 32 divisors (see below), whose sum is σ = 54013680. Its totient is φ = 6172800.
The previous prime is 20061901. The next prime is 20061917. The reversal of 20061912 is 21916002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20061917) 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, 31839 + ... + 32462.
Almost surely, 220061912 is an apocalyptic number.
It is an amenable number.
20061912 is an abundant number, since it is smaller than the sum of its proper divisors (33951768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20061912 is a wasteful number, since it uses less digits than its factorization.
20061912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 64323 (or 64319 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 20061912 is about 4479.0525783920. The cubic root of 20061912 is about 271.7215648440.
Adding to 20061912 its reverse (21916002), we get a palindrome (41977914).
The spelling of 20061912 in words is "twenty million, sixty-one thousand, nine hundred twelve".
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