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13123134330 = 235437437811
BaseRepresentation
bin11000011100011001…
…10010001101111010
31020212120111022000020
430032030302031322
5203334010244310
610010110151310
7643126541565
oct141614621572
936776438006
1013123134330
115624738069
122662ab2536
131311a55457
148c6c5d4dc
1551c176170
hex30e33237a

13123134330 has 16 divisors (see below), whose sum is σ = 31495522464. Its totient is φ = 3499502480.

The previous prime is 13123134307. The next prime is 13123134341. The reversal of 13123134330 is 3343132131.

It is a happy number.

13123134330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13123134330.

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, 218718876 + ... + 218718935.

It is an arithmetic number, because the mean of its divisors is an integer number (1968470154).

Almost surely, 213123134330 is an apocalyptic number.

13123134330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13123134330 is an abundant number, since it is smaller than the sum of its proper divisors (18372388134).

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

13123134330 is a wasteful number, since it uses less digits than its factorization.

13123134330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437437821.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 13123134330 its reverse (3343132131), we get a palindrome (16466266461).

It can be divided in two parts, 131231 and 34330, that added together give a palindrome (165561).

The spelling of 13123134330 in words is "thirteen billion, one hundred twenty-three million, one hundred thirty-four thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 437437811 874875622 1312313433 2187189055 2624626866 4374378110 6561567165 13123134330