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20130110 = 25711132011
BaseRepresentation
bin100110011001…
…0100100111110
31101212201022122
41030302210332
520123130420
61555242542
7333050240
oct114624476
941781278
1020130110
11103aa060
1268a9452
13422a710
142960090
151b79725
hex133293e

20130110 has 64 divisors (see below), whose sum is σ = 48674304. Its totient is φ = 5788800.

The previous prime is 20130079. The next prime is 20130163. The reversal of 20130110 is 1103102.

It is a super-2 number, since 2×201301102 = 810442657224200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9005 + ... + 11015.

It is an arithmetic number, because the mean of its divisors is an integer number (760536).

Almost surely, 220130110 is an apocalyptic number.

20130110 is an abundant number, since it is smaller than the sum of its proper divisors (28544194).

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

20130110 is a wasteful number, since it uses less digits than its factorization.

20130110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20130110 is about 4486.6591134161. The cubic root of 20130110 is about 272.0291112873.

Adding to 20130110 its reverse (1103102), we get a palindrome (21233212).

The spelling of 20130110 in words is "twenty million, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 7 10 11 13 14 22 26 35 55 65 70 77 91 110 130 143 154 182 286 385 455 715 770 910 1001 1430 2002 2011 4022 5005 10010 10055 14077 20110 22121 26143 28154 44242 52286 70385 110605 130715 140770 154847 183001 221210 261430 287573 309694 366002 575146 774235 915005 1437865 1548470 1830010 2013011 2875730 4026022 10065055 20130110