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11205102012 = 22313294435591
BaseRepresentation
bin10100110111110000…
…00100100110111100
31001220220101011022020
422123320010212330
5140422001231022
65051512120140
7544446536616
oct123370044674
931826334266
1011205102012
11482aa95a95
122208696050
131097579ca0
1478421ddb6
15458aa535c
hex29be049bc

11205102012 has 96 divisors (see below), whose sum is σ = 29198292480. Its totient is φ = 3320728320.

The previous prime is 11205101987. The next prime is 11205102019. The reversal of 11205102012 is 21020150211.

11205102012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×112051020122 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11205101982 and 11205102000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205102019) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2001337 + ... + 2006927.

It is an arithmetic number, because the mean of its divisors is an integer number (304148880).

Almost surely, 211205102012 is an apocalyptic number.

11205102012 is a gapful number since it is divisible by the number (12) 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 11205102012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14599146240).

11205102012 is an abundant number, since it is smaller than the sum of its proper divisors (17993190468).

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

11205102012 is a wasteful number, since it uses less digits than its factorization.

11205102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6083 (or 6081 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 11205102012 its reverse (21020150211), we get a palindrome (32225252223).

The spelling of 11205102012 in words is "eleven billion, two hundred five million, one hundred two thousand, twelve".

Divisors: 1 2 3 4 6 12 13 26 29 39 52 58 78 87 116 156 174 348 377 443 754 886 1131 1329 1508 1772 2262 2658 4524 5316 5591 5759 11182 11518 12847 16773 17277 22364 23036 25694 33546 34554 38541 51388 67092 69108 72683 77082 145366 154164 162139 167011 218049 290732 324278 334022 436098 486417 501033 648556 668044 872196 972834 1002066 1945668 2004132 2107807 2476813 4215614 4953626 6323421 7430439 8431228 9907252 12646842 14860878 25293684 29721756 32198569 64397138 71827577 96595707 128794276 143655154 193191414 215482731 287310308 386382828 430965462 861930924 933758501 1867517002 2801275503 3735034004 5602551006 11205102012