Base | Representation |
---|---|
bin | 10010101111110101… |
… | …111100001010011000 |
3 | 1220221220012001221212 |
4 | 102233311330022120 |
5 | 312211241201130 |
6 | 13125252122252 |
7 | 1311561235622 |
oct | 225765741230 |
9 | 56856161855 |
10 | 20130022040 |
11 | 859a966557 |
12 | 3a99606388 |
13 | 1b8a60045b |
14 | d8d68dc12 |
15 | 7cc3a0e95 |
hex | 4afd7c298 |
20130022040 has 32 divisors (see below), whose sum is σ = 45304425360. Its totient is φ = 8049897600.
The previous prime is 20130022007. The next prime is 20130022063. The reversal of 20130022040 is 4022003102.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93230 + ... + 221250.
Almost surely, 220130022040 is an apocalyptic number.
20130022040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20130022040 is an abundant number, since it is smaller than the sum of its proper divisors (25174403320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20130022040 is a wasteful number, since it uses less digits than its factorization.
20130022040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131963 (or 131959 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 14.
Adding to 20130022040 its reverse (4022003102), we get a palindrome (24152025142).
The spelling of 20130022040 in words is "twenty billion, one hundred thirty million, twenty-two thousand, forty".
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