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20203230032 = 2417412917989
BaseRepresentation
bin10010110100001101…
…001101001101010000
31221010222221102102222
4102310031031031100
5312334011330112
613140425200212
71313440423166
oct226415151520
957128842388
1020203230032
118628218827
123aba030068
131b9c8231ab
14d992a9236
157d3a12372
hex4b434d350

20203230032 has 40 divisors (see below), whose sum is σ = 41458674600. Its totient is φ = 9504571392.

The previous prime is 20203230017. The next prime is 20203230067. The reversal of 20203230032 is 23003230202.

It can be written as a sum of positive squares in 4 ways, for example, as 8607386176 + 11595843856 = 92776^2 + 107684^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114094 + ... + 1132082.

It is an arithmetic number, because the mean of its divisors is an integer number (1036466865).

Almost surely, 220203230032 is an apocalyptic number.

It is an amenable number.

20203230032 is an abundant number, since it is smaller than the sum of its proper divisors (21255444568).

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

20203230032 is a wasteful number, since it uses less digits than its factorization.

20203230032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22143 (or 22137 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 20203230032 its reverse (23003230202), we get a palindrome (43206460234).

The spelling of 20203230032 in words is "twenty billion, two hundred three million, two hundred thirty thousand, thirty-two".

Divisors: 1 2 4 8 16 17 34 68 136 272 4129 8258 16516 17989 33032 35978 66064 70193 71956 140386 143912 280772 287824 305813 561544 611626 1123088 1223252 2446504 4893008 74276581 148553162 297106324 594212648 1188425296 1262701877 2525403754 5050807508 10101615016 20203230032