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18293613418828 = 2211616815802317
BaseRepresentation
bin1000010100011010100000…
…10101000101100101001100
32101202212000101001202002101
410022031100111011211030
54344210310013400303
6102523545303404444
73565445536265056
oct412152025054514
971685011052071
1018293613418828
1159133069525a0
122075512153724
13a2910768b967
144735b66308d6
1521acd3a1bd1d
hex10a35054594c

18293613418828 has 24 divisors (see below), whose sum is σ = 35496698472144. Its totient is φ = 8178962779200.

The previous prime is 18293613418771. The next prime is 18293613418831. The reversal of 18293613418828 is 82881431639281.

It is a self number, because there is not a number n which added to its sum of digits gives 18293613418828.

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 7 ways as a sum of consecutive naturals, for example, 3407898475 + ... + 3407903842.

It is an arithmetic number, because the mean of its divisors is an integer number (1479029103006).

Almost surely, 218293613418828 is an apocalyptic number.

It is an amenable number.

18293613418828 is a deficient number, since it is larger than the sum of its proper divisors (17203085053316).

18293613418828 is a wasteful number, since it uses less digits than its factorization.

18293613418828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815802393 (or 6815802391 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 64.

The spelling of 18293613418828 in words is "eighteen trillion, two hundred ninety-three billion, six hundred thirteen million, four hundred eighteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 11 22 44 61 122 244 671 1342 2684 6815802317 13631604634 27263209268 74973825487 149947650974 299895301948 415763941337 831527882674 1663055765348 4573403354707 9146806709414 18293613418828