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13012312324 = 2211673439427
BaseRepresentation
bin11000001111001100…
…00010000100000100
31020120211221221210111
430013212002010010
5203122122443244
65551111002404
7640312554424
oct140746020404
936524857714
1013012312324
115578124930
122631969404
1312c4ac2bbb
148b6252484
15512584e34
hex307982104

13012312324 has 24 divisors (see below), whose sum is σ = 24878655648. Its totient is φ = 5905885440.

The previous prime is 13012312321. The next prime is 13012312351. The reversal of 13012312324 is 42321321031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13012312295 and 13012312304.

It is not an unprimeable number, because it can be changed into a prime (13012312321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190102 + ... + 249325.

It is an arithmetic number, because the mean of its divisors is an integer number (1036610652).

Almost surely, 213012312324 is an apocalyptic number.

It is an amenable number.

13012312324 is a deficient number, since it is larger than the sum of its proper divisors (11866343324).

13012312324 is a wasteful number, since it uses less digits than its factorization.

13012312324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440115 (or 440113 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13012312324 its reverse (42321321031), we get a palindrome (55333633355).

The spelling of 13012312324 in words is "thirteen billion, twelve million, three hundred twelve thousand, three hundred twenty-four".

Divisors: 1 2 4 11 22 44 673 1346 2692 7403 14806 29612 439427 878854 1757708 4833697 9667394 19334788 295734371 591468742 1182937484 3253078081 6506156162 13012312324