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31302322324 = 22713599071607
BaseRepresentation
bin11101001001110000…
…111000100010010100
32222210111211201202021
4131021300320202110
51003101343303244
622214033222524
72155462230640
oct351160704224
988714751667
1031302322324
1112303388079
126097101a44
132c4b134120
14172d3b1c20
15c33127284
hex749c38894

31302322324 has 96 divisors (see below), whose sum is σ = 68681410560. Its totient is φ = 12152460672.

The previous prime is 31302322319. The next prime is 31302322327. The reversal of 31302322324 is 42322320313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302322327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19477929 + ... + 19479535.

It is an arithmetic number, because the mean of its divisors is an integer number (715431360).

Almost surely, 231302322324 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31302322324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34340705280).

31302322324 is an abundant number, since it is smaller than the sum of its proper divisors (37379088236).

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

31302322324 is a wasteful number, since it uses less digits than its factorization.

31302322324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 31302322324 its reverse (42322320313), we get a palindrome (73624642637).

The spelling of 31302322324 in words is "thirty-one billion, three hundred two million, three hundred twenty-two thousand, three hundred twenty-four".

Divisors: 1 2 4 7 13 14 26 28 52 59 91 118 182 236 364 413 767 826 907 1534 1607 1652 1814 3068 3214 3628 5369 6349 6428 10738 11249 11791 12698 20891 21476 22498 23582 25396 41782 44996 47164 53513 82537 83564 94813 107026 146237 165074 189626 214052 292474 330148 374591 379252 584948 663691 695669 749182 1232569 1327382 1391338 1457549 1498364 2465138 2654764 2782676 2915098 4869683 4930276 5830196 8627983 9739366 10202843 17255966 18948137 19478732 20405686 34511932 37896274 40811372 75792548 85995391 132636959 171990782 265273918 343981564 530547836 601967737 1117940083 1203935474 2235880166 2407870948 4471760332 7825580581 15651161162 31302322324