Base | Representation |
---|---|
bin | 10010101111111110… |
… | …101000101000000000 |
3 | 1220222001110212112100 |
4 | 102233332220220000 |
5 | 312212332120222 |
6 | 13125413030400 |
7 | 1311616511004 |
oct | 225776505000 |
9 | 56861425470 |
10 | 20132301312 |
11 | 85a1182a52 |
12 | 3a9a325400 |
13 | 1b8ac1aa36 |
14 | d8dac4704 |
15 | 7cc6a14ac |
hex | 4affa8a00 |
20132301312 has 60 divisors (see below), whose sum is σ = 58103198010. Its totient is φ = 6710765568.
The previous prime is 20132301311. The next prime is 20132301359. The reversal of 20132301312 is 21310323102.
20132301312 is a `hidden beast` number, since 20 + 1 + 32 + 301 + 312 = 666.
It can be written as a sum of positive squares in only one way, i.e., 19955517696 + 176783616 = 141264^2 + 13296^2 .
It is a super-2 number, since 2×201323013122 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20132301311) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2179887 + ... + 2189102.
Almost surely, 220132301312 is an apocalyptic number.
It is an amenable number.
20132301312 is an abundant number, since it is smaller than the sum of its proper divisors (37970896698).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20132301312 is an equidigital number, since it uses as much as digits as its factorization.
20132301312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4369013 (or 4368994 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 20132301312 its reverse (21310323102), we get a palindrome (41442624414).
The spelling of 20132301312 in words is "twenty billion, one hundred thirty-two million, three hundred one thousand, three hundred twelve".
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