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31312204341 = 31117374136793
BaseRepresentation
bin11101001010010110…
…100101001000110101
32222211012102210022220
4131022112211020311
51003111411014331
622215025112553
72155642226325
oct351226451065
988735383286
1031312204341
1112308a17630
12609a488759
132c501b4082
141730825285
15c33e2a296
hex74a5a5235

31312204341 has 64 divisors (see below), whose sum is σ = 50736865536. Its totient is φ = 16953753600.

The previous prime is 31312204337. The next prime is 31312204349. The reversal of 31312204341 is 14340221313.

It is a happy number.

It is not a de Polignac number, because 31312204341 - 22 = 31312204337 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312204349) 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 63 ways as a sum of consecutive naturals, for example, 832641 + ... + 869433.

It is an arithmetic number, because the mean of its divisors is an integer number (792763524).

Almost surely, 231312204341 is an apocalyptic number.

It is an amenable number.

31312204341 is a deficient number, since it is larger than the sum of its proper divisors (19424661195).

31312204341 is a wasteful number, since it uses less digits than its factorization.

31312204341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36902.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31312204341 its reverse (14340221313), we get a palindrome (45652425654).

The spelling of 31312204341 in words is "thirty-one billion, three hundred twelve million, two hundred four thousand, three hundred forty-one".

Divisors: 1 3 11 17 33 37 41 51 111 123 187 407 451 561 629 697 1221 1353 1517 1887 2091 4551 6919 7667 16687 20757 23001 25789 36793 50061 77367 110379 283679 404723 625481 851037 1214169 1361341 1508513 1876443 4084023 4525539 6880291 14974751 16593643 20640873 23142797 25644721 44924253 49780929 55814981 69428391 76934163 167444943 254570767 282091931 613964791 763712301 846275793 948854677 1841894373 2846564031 10437401447 31312204341