Base | Representation |
---|---|
bin | 10010101010110010… |
… | …000001110010000000 |
3 | 1220201222102010002022 |
4 | 102222302001302000 |
5 | 312023022013100 |
6 | 13113020141012 |
7 | 1306510425050 |
oct | 225262016200 |
9 | 56658363068 |
10 | 20045110400 |
11 | 8556a40147 |
12 | 3a75097768 |
13 | 1b75b40593 |
14 | d822a9560 |
15 | 7c4bcbe85 |
hex | 4aac81c80 |
20045110400 has 96 divisors (see below), whose sum is σ = 56591705280. Its totient is φ = 6872601600.
The previous prime is 20045110381. The next prime is 20045110411. The reversal of 20045110400 is 401154002.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425036 + ... + 469835.
It is an arithmetic number, because the mean of its divisors is an integer number (589496930).
Almost surely, 220045110400 is an apocalyptic number.
20045110400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20045110400 is an abundant number, since it is smaller than the sum of its proper divisors (36546594880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20045110400 is an equidigital number, since it uses as much as digits as its factorization.
20045110400 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 894902 (or 894885 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 17.
Adding to 20045110400 its reverse (401154002), we get a palindrome (20446264402).
The spelling of 20045110400 in words is "twenty billion, forty-five million, one hundred ten thousand, four hundred".
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