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20100231110 = 2510919793607
BaseRepresentation
bin10010101110000100…
…010010111111000110
31220212211010112111002
4102232010102333012
5312131124343420
613122305413302
71311050100611
oct225604227706
956784115432
1020100231110
118585069153
123a8b63a232
131b8439c69b
14d89737178
157c9969075
hex4ae112fc6

20100231110 has 32 divisors (see below), whose sum is σ = 36698080320. Its totient is φ = 7925807232.

The previous prime is 20100231101. The next prime is 20100231127. The reversal of 20100231110 is 1113200102.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20100231091 and 20100231100.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 167927 + ... + 261533.

It is an arithmetic number, because the mean of its divisors is an integer number (1146815010).

Almost surely, 220100231110 is an apocalyptic number.

20100231110 is a deficient number, since it is larger than the sum of its proper divisors (16597849210).

20100231110 is a wasteful number, since it uses less digits than its factorization.

20100231110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93920.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20100231110 its reverse (1113200102), we get a palindrome (21213431212).

The spelling of 20100231110 in words is "twenty billion, one hundred million, two hundred thirty-one thousand, one hundred ten".

Divisors: 1 2 5 10 109 197 218 394 545 985 1090 1970 21473 42946 93607 107365 187214 214730 468035 936070 10203163 18440579 20406326 36881158 51015815 92202895 102031630 184405790 2010023111 4020046222 10050115555 20100231110