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31343010423 = 361257666433
BaseRepresentation
bin11101001100001100…
…000110001001110111
32222220100101220022220
4131030030012021313
51003142302313143
622222045253423
72156465123064
oct351414061167
988810356286
1031343010423
11123243486aa
1260a8864273
132c566abc1a
141734963c6b
15c369b2d83
hex74c306277

31343010423 has 16 divisors (see below), whose sum is σ = 42641113056. Its totient is φ = 20472791040.

The previous prime is 31343010407. The next prime is 31343010431. The reversal of 31343010423 is 32401034313.

It is not a de Polignac number, because 31343010423 - 24 = 31343010407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31343010393 and 31343010402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343010463) 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 15 ways as a sum of consecutive naturals, for example, 286186 + ... + 380247.

It is an arithmetic number, because the mean of its divisors is an integer number (2665069566).

Almost surely, 231343010423 is an apocalyptic number.

31343010423 is a deficient number, since it is larger than the sum of its proper divisors (11298102633).

31343010423 is a wasteful number, since it uses less digits than its factorization.

31343010423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666754.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31343010423 its reverse (32401034313), we get a palindrome (63744044736).

The spelling of 31343010423 in words is "thirty-one billion, three hundred forty-three million, ten thousand, four hundred twenty-three".

Divisors: 1 3 61 183 257 771 15677 47031 666433 1999299 40652413 121957239 171273281 513819843 10447670141 31343010423