Base | Representation |
---|---|
bin | 10011000011101011… |
… | …011010011101100000 |
3 | 1221211002101021221022 |
4 | 103003223122131200 |
5 | 313401434310010 |
6 | 13222300545012 |
7 | 1323041663045 |
oct | 230353323540 |
9 | 57732337838 |
10 | 20462806880 |
11 | 87507a274a |
12 | 3b70b52168 |
13 | 1c11539969 |
14 | dc19591cc |
15 | 7eb6d8d55 |
hex | 4c3ada760 |
20462806880 has 48 divisors (see below), whose sum is σ = 48412610064. Its totient is φ = 8173401600.
The previous prime is 20462806849. The next prime is 20462806883. The reversal of 20462806880 is 8860826402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20462806883) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20939 + ... + 203381.
It is an arithmetic number, because the mean of its divisors is an integer number (1008596043).
Almost surely, 220462806880 is an apocalyptic number.
20462806880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20462806880 is an abundant number, since it is smaller than the sum of its proper divisors (27949803184).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20462806880 is a wasteful number, since it uses less digits than its factorization.
20462806880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 183159 (or 183151 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 44.
The spelling of 20462806880 in words is "twenty billion, four hundred sixty-two million, eight hundred six thousand, eight hundred eighty".
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