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12102021310 = 251963694849
BaseRepresentation
bin10110100010101011…
…00011000010111110
31011020102002101021111
423101111203002332
5144241104140220
65320512152234
7605620324651
oct132125430276
934212071244
1012102021310
115150303805
122418b3867a
1311ab335372
1482b3b7898
154ac6c415a
hex2d15630be

12102021310 has 16 divisors (see below), whose sum is σ = 22930146000. Its totient is φ = 4586029056.

The previous prime is 12102021301. The next prime is 12102021331. The reversal of 12102021310 is 1312020121.

12102021310 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 2×121020213102 (a number of 21 digits) 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31847235 + ... + 31847614.

It is an arithmetic number, because the mean of its divisors is an integer number (1433134125).

Almost surely, 212102021310 is an apocalyptic number.

12102021310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102021310 is a deficient number, since it is larger than the sum of its proper divisors (10828124690).

12102021310 is a wasteful number, since it uses less digits than its factorization.

12102021310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63694875.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12102021310 its reverse (1312020121), we get a palindrome (13414041431).

The spelling of 12102021310 in words is "twelve billion, one hundred two million, twenty-one thousand, three hundred ten".

Divisors: 1 2 5 10 19 38 95 190 63694849 127389698 318474245 636948490 1210202131 2420404262 6051010655 12102021310