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20300231300 = 2252378366103
BaseRepresentation
bin10010111001111111…
…001111001010000100
31221101202110121011112
4102321333033022010
5313033324400200
613154212224152
71316026055546
oct227177171204
957352417145
1020300231300
118677a51268
123b2660b058
131bb6956aab
14da8119696
157dc2c3535
hex4b9fcf284

20300231300 has 72 divisors (see below), whose sum is σ = 45787861056. Its totient is φ = 7805324160.

The previous prime is 20300231299. The next prime is 20300231381. The reversal of 20300231300 is 313200302.

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 23 ways as a sum of consecutive naturals, for example, 274049 + ... + 340151.

Almost surely, 220300231300 is an apocalyptic number.

20300231300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20300231300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22893930528).

20300231300 is an abundant number, since it is smaller than the sum of its proper divisors (25487629756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20300231300 is a wasteful number, since it uses less digits than its factorization.

20300231300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66237 (or 66230 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20300231300 its reverse (313200302), we get a palindrome (20613431602).

The spelling of 20300231300 in words is "twenty billion, three hundred million, two hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 37 50 74 83 100 148 166 185 332 370 415 740 830 925 1660 1850 2075 3071 3700 4150 6142 8300 12284 15355 30710 61420 66103 76775 132206 153550 264412 307100 330515 661030 1322060 1652575 2445811 3305150 4891622 5486549 6610300 9783244 10973098 12229055 21946196 24458110 27432745 48916220 54865490 61145275 109730980 122290550 137163725 203002313 244581100 274327450 406004626 548654900 812009252 1015011565 2030023130 4060046260 5075057825 10150115650 20300231300