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203313142420 = 22573271351329
BaseRepresentation
bin1011110101011001101…
…0000101101010010100
3201102210020112202110221
42331112122011222110
511312341131024140
6233222322124124
720455201124233
oct2752632055224
9642706482427
10203313142420
1179251a72133
12334a11b0644
131623185348b
149baa11cb1a
15544e27114a
hex2f56685a94

203313142420 has 48 divisors (see below), whose sum is σ = 432974298960. Its totient is φ = 80180084736.

The previous prime is 203313142411. The next prime is 203313142463. The reversal of 203313142420 is 24241313302.

203313142420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 49019731216 + 154293411204 = 221404^2 + 392802^2 .

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 15 ways as a sum of consecutive naturals, for example, 3935316 + ... + 3986644.

It is an arithmetic number, because the mean of its divisors is an integer number (9020297895).

Almost surely, 2203313142420 is an apocalyptic number.

203313142420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203313142420 is an abundant number, since it is smaller than the sum of its proper divisors (229661156540).

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

203313142420 is a wasteful number, since it uses less digits than its factorization.

203313142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54124 (or 54122 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203313142420 its reverse (24241313302), we get a palindrome (227554455722).

The spelling of 203313142420 in words is "two hundred three billion, three hundred thirteen million, one hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 2713 5426 10852 13565 27130 51329 54260 102658 198049 205316 256645 396098 513290 792196 990245 1026580 1980490 3747017 3960980 7494034 14988068 18735085 37470170 74940340 139255577 278511154 557022308 696277885 1392555770 2785111540 10165657121 20331314242 40662628484 50828285605 101656571210 203313142420