Base | Representation |
---|---|
bin | 10010101101010011… |
… | …011101001010010010 |
3 | 1220211221001001112211 |
4 | 102231103131022102 |
5 | 312114340141410 |
6 | 13121131142334 |
7 | 1310533214146 |
oct | 225523351222 |
9 | 56757031484 |
10 | 20087427730 |
11 | 8578913847 |
12 | 3a872a49aa |
13 | 1b81838b16 |
14 | d87b63226 |
15 | 7c878a68a |
hex | 4ad4dd292 |
20087427730 has 16 divisors (see below), whose sum is σ = 36285139584. Its totient is φ = 8006577840.
The previous prime is 20087427721. The next prime is 20087427751. The reversal of 20087427730 is 3772478002.
It is an unprimeable number.
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, 3546186 + ... + 3551845.
It is an arithmetic number, because the mean of its divisors is an integer number (2267821224).
Almost surely, 220087427730 is an apocalyptic number.
20087427730 is a deficient number, since it is larger than the sum of its proper divisors (16197711854).
20087427730 is a wasteful number, since it uses less digits than its factorization.
20087427730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7098321.
The product of its (nonzero) digits is 131712, while the sum is 40.
The spelling of 20087427730 in words is "twenty billion, eighty-seven million, four hundred twenty-seven thousand, seven hundred thirty".
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