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31302001310230 = 2572194993673381
BaseRepresentation
bin1110001111000000100001…
…01010110011101000010110
311002211102221021212022020101
413013200100222303220112
513100322444313411410
6150323535121524314
76410331526050400
oct707402052635026
9132742837768211
1031302001310230
119a79116775242
123616654aa369a
1314609c604c211
147a304c651b70
1539438476ed3a
hex1c7810ab3a16

31302001310230 has 96 divisors (see below), whose sum is σ = 69006086408160. Its totient is φ = 10165215191040.

The previous prime is 31302001310227. The next prime is 31302001310351. The reversal of 31302001310230 is 3201310020313.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 31302001310198 and 31302001310207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46148140 + ... + 46821520.

It is an arithmetic number, because the mean of its divisors is an integer number (718813400085).

Almost surely, 231302001310230 is an apocalyptic number.

31302001310230 is an abundant number, since it is smaller than the sum of its proper divisors (37704085097930).

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

31302001310230 is a wasteful number, since it uses less digits than its factorization.

31302001310230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678414 (or 678407 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31302001310230 its reverse (3201310020313), we get a palindrome (34503311330543).

The spelling of 31302001310230 in words is "thirty-one trillion, three hundred two billion, one million, three hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 490 665 931 1330 1862 4655 4993 9310 9986 24965 34951 49930 69902 94867 174755 189734 244657 349510 474335 489314 664069 673381 948670 1223285 1328138 1346762 2446570 3320345 3366905 4648483 4713667 6640690 6733810 9296966 9427334 12794239 23242415 23568335 25588478 32995669 46484830 47136670 63971195 65991338 89559673 127942390 164978345 179119346 329956690 447798365 626917711 895596730 1253835422 3134588555 3362191333 6269177110 6724382666 16810956665 23535339331 33621913330 47070678662 63881635327 117676696655 127763270654 164747375317 235353393310 319408176635 329494750634 447171447289 638816353270 823736876585 894342894578 1647473753170 2235857236445 3130200131023 4471714472890 6260400262046 15651000655115 31302001310230