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31043434344 = 2331399498187
BaseRepresentation
bin11100111010010101…
…010011011101101000
32222010110200212012120
4130322111103131220
51002034104344334
622132224311240
72146166560326
oct347225233550
988113625176
1031043434344
111219023376a
126024472520
132c095cc080
141706c60d16
15c1a539949
hex73a553768

31043434344 has 32 divisors (see below), whose sum is σ = 83578477920. Its totient is φ = 9551825856.

The previous prime is 31043434327. The next prime is 31043434349. The reversal of 31043434344 is 44343434013.

It is not an unprimeable number, because it can be changed into a prime (31043434349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49748782 + ... + 49749405.

It is an arithmetic number, because the mean of its divisors is an integer number (2611827435).

Almost surely, 231043434344 is an apocalyptic number.

It is an amenable number.

31043434344 is an abundant number, since it is smaller than the sum of its proper divisors (52535043576).

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

31043434344 is a wasteful number, since it uses less digits than its factorization.

31043434344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99498209 (or 99498205 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 31043434344 its reverse (44343434013), we get a palindrome (75386868357).

The spelling of 31043434344 in words is "thirty-one billion, forty-three million, four hundred thirty-four thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 99498187 198996374 298494561 397992748 596989122 795985496 1193978244 1293476431 2387956488 2586952862 3880429293 5173905724 7760858586 10347811448 15521717172 31043434344