Base | Representation |
---|---|
bin | 1000010100110001101… |
… | …00100001111100111000 |
3 | 1000100022001012100111112 |
4 | 10022120310201330320 |
5 | 14141243111431140 |
6 | 335222353015452 |
7 | 26444063515301 |
oct | 4123064417470 |
9 | 1010261170445 |
10 | 286031748920 |
11 | 10033a513545 |
12 | 47527554588 |
13 | 20c84c87a98 |
14 | dbb5d717a8 |
15 | 769124cc65 |
hex | 4298d21f38 |
286031748920 has 32 divisors (see below), whose sum is σ = 659268303120. Its totient is φ = 111622145280.
The previous prime is 286031748917. The next prime is 286031748929. The reversal of 286031748920 is 29847130682.
It is a super-2 number, since 2×2860317489202 (a number of 24 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (286031748929) 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, 87203162 + ... + 87206441.
Almost surely, 2286031748920 is an apocalyptic number.
286031748920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
286031748920 is an abundant number, since it is smaller than the sum of its proper divisors (373236554200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
286031748920 is a wasteful number, since it uses less digits than its factorization.
286031748920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 174409655 (or 174409651 counting only the distinct ones).
The product of its (nonzero) digits is 1161216, while the sum is 50.
The spelling of 286031748920 in words is "two hundred eighty-six billion, thirty-one million, seven hundred forty-eight thousand, nine hundred twenty".
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