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18083340282 = 23729115112899
BaseRepresentation
bin10000110101110110…
…011101111111111010
31201200020222212101210
4100311312131333322
5244013313342112
612150220423550
71210056566460
oct206566357772
951606885353
1018083340282
11773a635227
1236080a7bb6
131922590167
14c37922830
1570c86bb3c
hex435d9dffa

18083340282 has 64 divisors (see below), whose sum is σ = 42799104000. Its totient is φ = 4983787200.

The previous prime is 18083340257. The next prime is 18083340361. The reversal of 18083340282 is 28204338081.

It is a self number, because there is not a number n which added to its sum of digits gives 18083340282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1395469 + ... + 1408367.

It is an arithmetic number, because the mean of its divisors is an integer number (668736000).

Almost surely, 218083340282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18083340282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21399552000).

18083340282 is an abundant number, since it is smaller than the sum of its proper divisors (24715763718).

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

18083340282 is a wasteful number, since it uses less digits than its factorization.

18083340282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14091.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 18083340282 in words is "eighteen billion, eighty-three million, three hundred forty thousand, two hundred eighty-two".

Divisors: 1 2 3 6 7 14 21 29 42 58 87 174 203 406 609 1151 1218 2302 3453 6906 8057 12899 16114 24171 25798 33379 38697 48342 66758 77394 90293 100137 180586 200274 233653 270879 374071 467306 541758 700959 748142 1122213 1401918 2244426 2618497 5236994 7855491 14846749 15710982 29693498 44540247 89080494 103927243 207854486 311781729 430555721 623563458 861111442 1291667163 2583334326 3013890047 6027780094 9041670141 18083340282