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104431323388 = 2276161142461
BaseRepresentation
bin110000101000010010…
…1111000100011111100
3100222112222221220011011
41201100211320203330
53202333404322023
6115550341405004
710354622413450
oct1412045704374
9328488856134
10104431323388
114031a839a37
12182a5a09764
139b038bbba2
1450a97b0660
152ab32ae50d
hex18509788fc

104431323388 has 24 divisors (see below), whose sum is σ = 212286628064. Its totient is φ = 44022571200.

The previous prime is 104431323263. The next prime is 104431323389. The reversal of 104431323388 is 883323134401.

It is a self number, because there is not a number n which added to its sum of digits gives 104431323388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104431323389) 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 7 ways as a sum of consecutive naturals, for example, 30569523 + ... + 30572938.

Almost surely, 2104431323388 is an apocalyptic number.

It is an amenable number.

104431323388 is an abundant number, since it is smaller than the sum of its proper divisors (107855304676).

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

104431323388 is a wasteful number, since it uses less digits than its factorization.

104431323388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61142533 (or 61142531 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

Adding to 104431323388 its reverse (883323134401), we get a palindrome (987754457789).

The spelling of 104431323388 in words is "one hundred four billion, four hundred thirty-one million, three hundred twenty-three thousand, three hundred eighty-eight".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 61142461 122284922 244569844 427997227 855994454 1711988908 3729690121 7459380242 14918760484 26107830847 52215661694 104431323388