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11311212010 = 257755921377
BaseRepresentation
bin10101000100011001…
…10110010111101010
31002012022001002212011
422202030312113222
5141131132241020
65110222310134
7550205500330
oct124214662752
932168032764
1011311212010
11488497aaaa
12223812834a
1310b354c877
14794361b50
1546306535a
hex2a23365ea

11311212010 has 32 divisors (see below), whose sum is σ = 23272945920. Its totient is φ = 3877435392.

The previous prime is 11311212007. The next prime is 11311212019. The reversal of 11311212010 is 1021211311.

It is a happy number.

11311212010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11311212019) 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 15 ways as a sum of consecutive naturals, for example, 518442 + ... + 539818.

It is an arithmetic number, because the mean of its divisors is an integer number (727279560).

Almost surely, 211311212010 is an apocalyptic number.

11311212010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311212010 is an abundant number, since it is smaller than the sum of its proper divisors (11961733910).

11311212010 is a wasteful number, since it uses less digits than its factorization.

11311212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28950.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11311212010 its reverse (1021211311), we get a palindrome (12332423321).

The spelling of 11311212010 in words is "eleven billion, three hundred eleven million, two hundred twelve thousand, ten".

Divisors: 1 2 5 7 10 14 35 70 7559 15118 21377 37795 42754 52913 75590 105826 106885 149639 213770 264565 299278 529130 748195 1496390 161588743 323177486 807943715 1131121201 1615887430 2262242402 5655606005 11311212010