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102144234042 = 232192367719181
BaseRepresentation
bin101111100100001000…
…1010101001000111010
3100202122121101201101100
41133020101111020322
53133142410442132
6114531401232230
710244141443464
oct1371021251072
9322577351340
10102144234042
113a356836954
1217967a92676
13982ab17396
144d2db43134
1529cc5dd37c
hex17c845523a

102144234042 has 96 divisors (see below), whose sum is σ = 243461013120. Its totient is φ = 30806455680.

The previous prime is 102144234037. The next prime is 102144234053. The reversal of 102144234042 is 240432441201.

102144234042 is a `hidden beast` number, since 1 + 0 + 214 + 42 + 3 + 404 + 2 = 666.

It is a super-3 number, since 3×1021442340423 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102144233997 and 102144234015.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5315692 + ... + 5334872.

It is an arithmetic number, because the mean of its divisors is an integer number (2536052220).

Almost surely, 2102144234042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102144234042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121730506560).

102144234042 is an abundant number, since it is smaller than the sum of its proper divisors (141316779078).

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

102144234042 is a wasteful number, since it uses less digits than its factorization.

102144234042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19908 (or 19905 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 102144234042 its reverse (240432441201), we get a palindrome (342576675243).

The spelling of 102144234042 in words is "one hundred two billion, one hundred forty-four million, two hundred thirty-four thousand, forty-two".

Divisors: 1 2 3 6 9 18 19 23 38 46 57 69 114 138 171 207 342 414 437 677 874 1311 1354 2031 2622 3933 4062 6093 7866 12186 12863 15571 19181 25726 31142 38362 38589 46713 57543 77178 93426 115086 115767 140139 172629 231534 280278 295849 345258 364439 441163 591698 728878 882326 887547 1093317 1323489 1775094 2186634 2646978 2662641 3279951 3970467 5325282 6559902 7940934 8382097 12985537 16764194 25146291 25971074 38956611 50292582 75438873 77913222 116869833 150877746 233739666 246725203 298667351 493450406 597334702 740175609 896002053 1480351218 1792004106 2220526827 2688006159 4441053654 5376012318 5674679669 11349359338 17024039007 34048078014 51072117021 102144234042